ABSTRACT
El carcinoma de células de Merkel, también llamado carcinoma neuroendocrino de la piel, es un tipo de cáncer de piel muy poco frecuente que generalmente aparece como un nódulo de color carne o rojo azulado, más frecuentemente en región facial, cabeza y cuello. El carcinoma de células de Merkel se desarrolla principalmente en personas mayores ya que la exposición al sol a largo plazo o un sistema inmunitario débil pueden aumentar el riesgo de desarrollarlo. Las células de Merkel se encuentran en la base de la capa más externa de la piel (epidermis) y están conectadas a las terminaciones nerviosas que son responsables del sentido del tacto. Tiende a crecer rápido y diseminarse a otras partes del cuerpo. Por tanto, las opciones de tratamiento para el carcinoma de células de Merkel dependen de si el cáncer se ha diseminado más allá de la piel
Merkel cell carcinoma, also called neuroendocrine skin of the skin, is a very rare type of skin cancer that generally appears as a bluish meat or red color nodule, more frequently in the facial, head and neck region. Merkel cell carcinoma develops mainly in older people since long -term exposure or a weak immune system can increase the risk of developing it. Merkel cells are at the base of the outermost layer of the skin (epidermis) and are connected to nerve endings that are responsible for the sense of touch. It tends to grow quickly and spread to other parts of the body. Therefore, the treatment options for Merkel cell carcinoma depend on whether cancer has spread beyond the skin
Subject(s)
Humans , Female , Aged , Skin Neoplasms/diagnosis , Carcinoma/diagnosis , Carcinoma, Merkel Cell/therapy , Carcinoma, Neuroendocrine/therapyABSTRACT
A ultrassonografia (US) é uma ferramenta diagnóstica amplamente utilizada na medicina há mais de 50 anos. Na dermatologia, o uso desta técnica vem crescendo, principalmente após o desenvolvimento de dispositivos de maior frequência (acima de 20 MHz), que possibilitaram a avaliação mais detalhada da pele e seus anexos. Apesar da ampla gama de informações que podem ser obtidas através deste exame e da necessidade de métodos não invasivos que auxiliem no diagnóstico, planejamento terapêutico e seguimento dos tumores cutâneos, a falta de uniformidade nos critérios avaliados e parâmetros ultrassonográficos ainda dificulta o uso rotineiro desta técnica de imagem na oncologia cutânea. Objetivos: Descrever as características ultrassonográficas dos tumores cutâneos no modo B e Doppler; comparar com técnicas já estabelecidas, dermatoscopia e histologia; e avaliar características morfológicas no modo B e da vascularização ao Doppler que possam diferenciar nevos e melanomas. Material e métodos: Análise prospectiva de lesões suspeitas de câncer de pele de pacientes provenientes do A.C.Camargo Cancer Center. As lesões foram submetidas à, dermatoscopia, ultrassonografia de alta frequência (USAF) e Doppler para posterior correlação com parâmetros anatomopatológicos. Resultados: Foram incluídas 289 lesões, sendo 105 carcinomas basocelulares (CBC), 35 carcinomas espinocelulares (CEC), 24 melanomas, 2 carcinomas de células de Merkel, 15 tumores malignos mais raros e metástases cutâneas de outros tumores e 108 lesões benignas. Todas as lesões malignas foram visualizadas à US com 24 MHz. As principais características ultrassonográficas dos tumores malignos foram: hipoecogenicidade (98.9%) e ecotextura homogênea (90.6%). A presença de vascularização foi mais frequente nas lesões malignas e este foi o parâmetro mais relevante para diferenciação entre malignas e benignas. Conclusão: A USAF demonstrou ser uma ferramenta bastante útil na avaliação dos tumores cutâneos, apoiando no diagnóstico, estadiamento, avaliação de resposta e seguimento. O diagnóstico diferencial entre os principais tumores cutâneos ainda não é possível utilizandose somente a USAF, sendo, portanto, a correlação com dermatoscopia e histopatologia fundamental para o diagnóstico definitivo. Não foram observadas características ultrassonográficas capazes de diferenciar com segurança nevos de melanomas em nossa amostra.
Ultrasound (US) is a diagnostic tool that has been widely used in medicine for over 50 years. In dermatology, the use of this technology is increasing, mainly after the development of higher frequency devices (above 20 MHz), which allow a more detailed assessment of the skin and its annexes. Despite the wide range of information that can be obtained through this exam and the need for non-invasive methods that help in the diagnosis, therapeutic planning and follow-up of skin tumors, the lack of uniformity in the assessment criteria and ultrasound parameters still hinders the routine use of this imaging technique in cutaneous oncology. Objectives: To describe the sonographic characteristics of cutaneous tumors in B-mode and Doppler and to compare them with dermoscopy and histology; and to evaluate morphological characteristics in B-mode and Doppler ultrasound that allow differentiating nevi and melanomas. Material and methods: Prospective analysis of patients with skin lesions suspicious for cancer from the A.C.Camargo Cancer Center. The lesions were assessed by dermoscopy, high-frequency ultrasound (24 MHz) and Doppler and then correlated with histology. Results: 289 lesions were included, of which 105 were basal cell carcinomas, 35 squamous cell carcinomas, 24 melanomas, 2 Merkel cell carcinomas, 15 less common malignant tumors and cutaneous metastases from other tumors and 108 benign lesions. All malignant lesions were visualized at 24 MHZ ultrasonography. The main sonographic characteristics of malignant tumors were: hypoechogenicity (98.9%) and homogeneous echotexture (90.6%) Vascularization was more frequent in malignant lesions and this was the most relevant parameter for differentiating malignant and benign lesions. Conclusion: High-frequency ultrasound proved to be a very useful tool in the assessment of skin tumors, supporting diagnosis, staging, assessment of therapeutic response and follow-up. It's still not possible differentiate the main skin tumors based only on sonographic criteria, therefore, the correlation with dermoscopy and histology is necessary for the definitive diagnosis. No sonographic features that could reliably differentiate nevi and melanomas were found in our sample
Subject(s)
Skin Neoplasms/diagnostic imaging , Ultrasonography , MelanomaABSTRACT
Introducción. En melanoma metastásico, uno de los estándares de tratamiento es la inmunoterapia anti-PD-1 y anti-CTLA-4. El objetivo de esta investigación fue determinar factores pronósticos asociados con la supervivencia de pacientes con melanoma metastásico, con primera línea con inmunoterapia anti-PD-1 o anti-PD-1 y anti-CTLA-4, en el Instituto Nacional de Cancerología de Colombia.Métodos. Se revisaron 63 historias clínicas del Instituto Nacional de Cancerología de enero de 2016 a abril de 2020. Se realizó un análisis de supervivencia con método de Kaplan-Meier, prueba log-rank y regresión de Cox.Resultados. La mayoría de los pacientes fueron mujeres (58,7%); 47,6% tenían subtipo lentiginoso acral, 17,4% BRAF mutado, 20,6% compromiso en SNC, 50,8% recibieron nivolumab, 41,3% pembrolizumab y 7,9% nivolumab + ipilimumab. La mediana de supervivencia libre de progresión fue de 7,3 meses, con una tasa a 1, 2 y 3 años de 38,0%, 22,0% y 12,0% respectivamente; la mediana de supervivencia global fue 12,2 meses con una tasa a 1, 2 y 3 años de 50,0%, 25,0% y 19,0%. Como factor pronóstico protector para SLP se encontró el recibir nivolumab en comparación con pembrolizumab (HR=0,427; IC95% 0,21-0,86) y para SG el estado funcional al diagnóstico (ECOG 2 HR=12,38; IC95% 2,20-69,45).Conclusión. La SLP y SG fueron menores a la de ensayos clínicos aleatorizados en población caucásica, pero similar a la encontrada en estudios que incluyen mayor proporción del subtipo histológico lentiginoso acral, como la nuestra. Se encontraron como factores pronósticos el tipo de inmunoterapia utilizada y el estado funcional al diagnóstico.
Introduction: In metastatic melanoma, one of the standard treatments is anti-PD-1 and anti-CTLA-4 immunotherapy. This research aimed to determine prognostic factors associated with the survival of patients with metastatic melanoma who started first-line treatment with anti-PD-1 or anti-PD-1 and anti-CTLA-4 immunotherapy at the Instituto Nacional de Cancerología (INC) (Bogotá, Colombia).Methods: A total of 63 medical records from the INC were reviewed from January 2016 to April 2020. A survival analysis was performed using the Kaplan-Meier method, log-rank test, and Cox regression.Results: Most patients were women (58.7%); 47.6% had acral lentiginous subtype, 17.4% BRAF-mutated melanoma, 20.6% CNS involvement, 50.8% received nivolumab, 41.3% pembrolizumab, and 7.9% nivolumab + ipilimumab. Median progression-free survival (PFS) was 7.3 months with a rate at 1, 2, and 3 years of 38%, 22%, and 12%, respectively, while median overall survival (OS) was 12.2 months with a rate of 50%, 25%, and 19% at 1, 2, and 3 years, respectively. A protective prognostic factor for PFS was to receive nivolumab compared to pembrolizumab (HR=0.427; CI95% 0.21-0.86), and for OS, functional status at diagnosis (ECOG 2 HR=12.38; CI95% 2.20-69.45).Conclusion: PFS and OS were lower than those of randomized clinical trials in the Caucasian population, but similar to those found in studies that include a higher proportion of the acral lentiginous histological subtype, such as ours. The type of immunotherapy used and functional status at diagnosis were found as prognostic factors
Subject(s)
Humans , Skin Neoplasms , Immune Checkpoint InhibitorsABSTRACT
Introducción: la cirugía micrográfica de Mohs es una técnica para la exéresis de cánceres de piel con la ventaja del examen histológico del 100% de los márgenes quirúrgicos, logrando así la tasa de curación más alta con la máxima preservación de tejido sano circundante. Objetivo: realizar una descripción clínico-epidemiológica de 7 años de experiencia en Uruguay. Método: análisis descriptivo de pacientes operados por un mismo cirujano de Mohs registrando datos clínicos, tumorales y quirúrgicos. Resultados: se estudiaron 641 cirugías. 54,9% fueron realizadas en hombres y 45,1% en mujeres. La edad media fue de 69 años. El 68,2% correspondió a carcinoma basocelular y 31,8% a carcinoma espinocelular. El 79,4% se encontraba en cabeza y cuello. El 87,8% de los tumores fueron primarios y un 11,1% recidivas. El tipo más frecuente de cierre fue el cierre simple con 48,7% seguido de los colgajos con un 31,7%. Conclusiones: la cirugía de Mohs es un procedimiento seguro y eficaz, y nuestros resultados coinciden con lo descrito en centros de referencia internacional. Este trabajo describe 7 años de experiencia en Uruguay de la técnica de CMM, siendo el mayor a nivel nacional.
Introduction: Mohs micrographic surgery is a technique for skin cancer exeresis involving the advantage of 100% of surgical margins histological exam, which leads to highest healing rates with the maximum preservation of the surrounding healthy tissue. Objective: to conduct a clinical and epidemiological description of a 7 years' experience in Uruguay. Method: descriptive analysis of patients operated by the same Mohs surgeon who recorded clinical, tumor and surgical data. Results: 641 surgeries were included in the study. 54.9% of surgeries were performed in men and 45.1% in women. Average age was 69 years old. 68.2% of cases corresponded to basal cell carcinoma and 31.8% to squamous cell carcinoma. 79.4% were located in the head and neck, 87.8% of tumors were primary and 11.1% were cases of relapse. The most frequent type of closure was simple in 48.7% of cases, followed by flaps in 31.7%. Conclusions: Mohs surgery is a safe an effective procedure, and the results of the study agree with what is described in international reference centers. The study describes a 7 years' experience in Uruguay of Mohs micrographic surgery, being it the largest research conducted in Uruguay.
Introdução: a cirurgia micrográfica de Mohs é uma técnica de excisão de cânceres de pele com a vantagem do exame histológico de 100% das margens cirúrgicas, alcançando assim a maior taxa de cura com a máxima preservação do tecido saudável circundante. Objetivo: realizar uma descrição clínico-epidemiológica de 7 anos de experiência no Uruguai. Método: análise descritiva de pacientes operados pelo mesmo cirurgião com experiência na técnica de Mohs registrando dados clínicos, tumorais e cirúrgicos. Resultados: foram estudadas 641 cirurgias. 54,9% foram realizados em homens e 45,1% em mulheres. A média de idade foi de 69 anos. 68,2% corresponderam a carcinoma basocelular e 31,8% a carcinoma espinocelular. 79,4% estavam na cabeça e pescoço. 87,8% dos tumores eram primários e 11,1% recidivas. O tipo de fechamento mais frequente foi o fechamento simples (48,7%) seguido do fechamento com retalhos com (31,7%). Conclusões: a cirurgia de Mohs é um procedimento seguro e eficaz, e nossos resultados coincidem com os descritos em centros de referência internacionais. Este trabalho descreve 7 anos de experiência no Uruguai da técnica CMM, sendo a maior a nível nacional.
Subject(s)
Carcinoma, Basal Cell/surgery , Mohs Surgery , Skin Neoplasms/surgeryABSTRACT
A pesquisa teve como objetivo geral analisar a atividade e o ofício dos mototaxistas de Sobral, Ceará. O objetivo específico foi compreender: a) a atividade exercida e o conceito de real da atividade; b) as prescrições; c) as regras informais; e d) as relações profissionais. A investigação adotou o referencial teórico da Clínica da Atividade, e participaram oito mototaxistas. Inspiradas no método da Instrução ao Sósia, foram realizadas e gravadas entrevistas semiestruturadas. Seu áudio foi transcrito e o conteúdo passou por análise construtivo-interpretativa. Os resultados mostraram que a atividade era regulamentada pela prefeitura e dependia da manutenção dos instrumentos utilizados. O expediente era organizado por uma regra do coletivo de trabalho relacionada ao horário de funcionamento de escolas e universidades. A busca por passageiros variava, sendo possível ficar em pontos fixos ou circular pela cidade. As condições ambientais demandavam cuidados como o uso de protetor solar e hidratação. A autonomia da profissão permitia organizar o próprio expediente e o ganho mensal. Entretanto, houve queixas relativas à falta de direitos previdenciários e ao fato de que a flexibilidade geraria uma sobrecarga de trabalho que poderia trazer prejuízos à saúde. Riscos foram identificados em acidentes de trânsito e violência urbana. Os relatos acerca das relações com os colegas mostraram um ambiente amistoso, e as relações com os passageiros eram definidas por cada situação, abrangendo desde interações objetivas até conversas pessoais.(AU)
The research had as general objective to analyze the activity and the work of motorcycle taxi drivers in Sobral, Ceará. Specific objectives were to understand: (a) the activity performed and the real of activity; (b) the prescriptions; (c) informal rules and (d) professional relationships. The investigation adopted the theoretical framework of the Clinic of Activity. Eight motorcycle taxi drivers participated in the investigation. Inspired by the instruction to the double method, semi-structured interviews were conducted. The audio of the interviews was transcribed and underwent constructive-interpretive analysis. The results showed that the activity was regulated by the city and depended on the maintenance of the instruments used. The working hours were organized by a collective labor rule related to the opening hours of schools and universities. The looking-for for passengers also varied: it was possible to stay at fixed points or move around the city. Environmental conditions required care such as the use of sunscreen and hydration. The profession's autonomy made it possible to organize its own hours and monthly earnings. However, there were complaints regarding the lack of social security rights and that flexibility would create an overload of work that could harm health. Risks have been identified in traffic accidents and urban violence. Reports about relationships with colleagues showed a friendly atmosphere. Relations with passengers were defined by each situation, ranging from objective interactions to personal conversations.(AU)
La investigación tuvo como objetivo general analizar la actividad y el trabajo de los mototaxis en Sobral, Ceará. Los objetivos específicos eran comprender: (a) la actividad realizada y la real de la actividad; (b) las prescripciones; (c) reglas informales y (d) relaciones profesionales. La investigación adoptó el marco teórico de la Clínica de Actividad. En la investigación participaron ocho mototaxis. Inspirándose en el método de instrucción al doble, se realizaron entrevistas semiestructuradas. El audio de las entrevistas fue transcrito y sometido a un análisis constructivo-interpretativo. Los resultados mostraron que la actividad estaba regulada por la prefectura municipal y dependía del mantenimiento de los instrumentos utilizados. Los horarios de trabajo fueron organizados por una norma laboral colectiva relacionada con los horarios de apertura de escuelas y universidades. La búsqueda de pasajeros también variaba: era posible permanecer en puntos fijos o moverse por la ciudad. Las condiciones ambientales requerían cuidados como el uso de protector solar e hidratación. La autonomía de la profesión permitió organizar sus propias horas y ganancias mensuales. Sin embargo, hubo quejas sobre la falta de derechos de seguridad social y que la flexibilidad crearía una sobrecarga de trabajo que podría dañar la salud. Se han identificado riesgos en accidentes de tráfico y violencia urbana. Los informes sobre las relaciones con los colegas mostraron un ambiente agradable. Las relaciones con los pasajeros se definieron por cada situación, desde interacciones objetivas hasta conversaciones personales.(AU)
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Psychopathology , Motorcycles , Official Letters , Motor Activity , Psychology , Public Policy , Quality of Life , Safety , Salaries and Fringe Benefits , Self Care , Skin Neoplasms , Sleep , Social Problems , Sociology , Sunscreening Agents , Technology , Theft , Urbanization , Violence , Work Hours , Burnout, Professional , Exercise , Accidents , Organizations , Disease , Civil Rights , Interview , Efficiency, Organizational , Disaster Vulnerability , Personal Autonomy , Capitalism , Dangerous Behavior , Death , Internationality , Economics , Employment , Sanitary Supervision , Informal Sector , Occupational Stress , Freedom , Frustration , Heat Exhaustion , Hypertension , Job Satisfaction , Labor Unions , Leisure Activities , ObesityABSTRACT
Abstract We report here microemulsions (MEs) for topical delivery of protoporphyrin IX (PpIX) for Photodynamic Therapy (PDT) of skin cancers. Selected MEs consisting of Oil/Water (O/W) bicontinuous (BC) and Water/Oil (W/O) preparations were characterized as to pH, nanometric size, zeta potential, drug content, and viscosity. Sustained in vitro PpIX release was achieved from MEs 2A (O/W), 10B (BC) and 16B (W/O) through an artificial membrane for up to 24 h, characterizing MEs as drug delivery systems. None of these MEs showed permeation through the skin, demonstrating the required topical effect. After 4 h, in vitro retention of PpIX in the stratum corneum (SC) was higher from both ME 10B and control (PpIX at 60 µg/mL in PEG 300). However, in the Epidermis + Dermis ([Ep + D]), retention from ME 10B and ME 16B was ~40 times higher compared to control. Confocal Laser Scanning Microscopy (CLSM) showed higher fluorescence intensity in the SC for both control and ME 10B, whereas ME 10B fluorescence was higher in [Ep+D]. The results indicate that ME 10B is suitable for PpIX encapsulation, showing good characteristics and a localized effect for a potential delivery system for PDT-associated treatments of skin cancers.
Subject(s)
Photochemotherapy/adverse effects , Protoporphyrins/agonists , Skin/injuries , Skin Neoplasms/pathology , In Vitro Techniques/instrumentation , Pharmaceutical Preparations/administration & dosage , Microscopy, Confocal/methods , Dermis/abnormalitiesABSTRACT
El cáncer de piel es el más frecuente de todos los tipos de cáncer del ser humano, por lo cual el conocimiento y diagnóstico correcto de la patología oncocutánea, así como la formación impartida a los especialistas de nuestra área, es de vital importancia a la hora de jerarquizar el diagnóstico temprano y lograr un adecuado tratamiento de forma oportuna. El correcto abordaje terapéutico del cáncer cutáneo y sus variantes es de primordial importancia en el manejo quirúrgico de los cirujanos plásticos, por lo cual la Comisión de Oncología Quirúrgica de tumores de piel de la Sociedad Argentina de Cirugía Plástica Estética y Reparadora (SACPER) decide realizar y difundir la siguiente encuesta anónima a los miembros de la SACPER. En esta encuesta evaluativa, se obtuvieron datos sobre el estado actual de formación de los cirujanos de nuestro país, la ejecución de las prácticas relacionadas con el abordaje, la resección o la reconstrucción posterior relacionados a dicha patología.
The knowledge and correct diagnosis of the oncocutaneous pathology, as well as the training provided to the specialists in our area, is of vital importance when prioritizing early diagnosis and achieving adequate treatment. The correct therapeutic approach to skin cancer and its variants is of paramount importance in the surgical management of plastic surgeons, for which we decided to carry out an anonymous survey of the members of the Argentine Society of Aesthetic and Reconstructive Plastic Surgery (SACPER). In this questionnaire, we obtained valuable information about the current state of training of surgeons in our country, the execution of practices related to the approach, resection, or subsequent reconstruction related to said pathology.
Subject(s)
Humans , Male , Female , Skin Neoplasms/surgery , Skin Neoplasms/diagnosis , Surveys and Questionnaires , Professional Training , SurgeonsABSTRACT
Los hemangiomas infantiles (HI) son los tumores benignos más frecuentes de la infancia; la variante segmentaria es rara y se asocia con un mal pronóstico. Una de sus principales complicaciones es la ulceración durante la fase de crecimiento del tumor, a pesar de no presentar características macroscópicas compatibles con una lesión agresiva. El manejo en estos casos es dificultoso e impone la necesidad de asociar múltiples estrategias, algunas orientadas específicamente a impedir la proliferación del hemangioma y otras orientadas a la curación de la herida, el manejo del dolor y la prevención de la infección agregada. Presentamos dos casos a fin de comunicar nuestra experiencia respecto del manejo de dicha patología y su evolución final.
Infantile hemangiomas (IHs) are the most common benign tumors of childhood, and segmental ones are rare and associated with a poor prognosis. While these tumors look harmless, one of their main related complications is ulceration during tumor growth. The management in these cases is extremely challenging, requiring a combination of multiple approaches, some specifically aimed at preventing the proliferation of the hemangioma and others aimed at wound care, pain management, and prevention of further infection. Here we discuss two cases to narrate our experience on the management of this condition and its outcome.
Subject(s)
Humans , Female , Infant, Newborn , Skin Neoplasms/drug therapy , Skin Ulcer/etiology , Skin Ulcer/drug therapy , Hemangioma/complications , Propranolol , Ulcer/etiology , Administration, Oral , Treatment Outcome , Hemangioma/drug therapyABSTRACT
Squamous cell carcinoma (SCC) is a non-melanoma skin cancer, with chronic sun exposure as the main risk factor. Excisional surgery is the most indicated treatment; however, patients can suffer functional, aesthetic, and psychological damage depending on the lesion site. Topical administration of 7,12-dimethylbenz[a]anthracene (DMBA) and 12-O-Tetradecanoylphorbol-13- acetate (TPA) induce to the appearance of benign skin tumors in mice, some of which develop into SCC. This protocol has been used to analyze the effects of many chemopreventive agents that may block or inhibit the mechanisms of action of chemical carcinogenesis. We compared the effects of chemopreventive agents in an induced skin carcinogenesis animal model. In the Scopus, PubMed, and EMBASE databases, we searched for manuscripts published between June 16, 2011, and June 16, 2021. We excluded studies conducted in vitro or on transgenic mice; in addition, studies without drug dosage, route of administration, or tumor incidence were excluded. We selected 26 studies and analyzed their main characteristics and the outcomes of tumorigenesis analysis. Most chemopreventive agents have shown excellent potential to inhibit the development of skin tumors. This review also discusses the standardization of studies in animal models to ensure better responses and future randomized clinical trials for cancer treatment and prevention.
O carcinoma espinocelular cutâneo (CEC) é um câncer de pele não melanoma, com a exposição solar crônica como o principal fator de risco. A cirurgia excisional é o tratamento mais indicado; entretanto, os pacientes podem sofrer danos funcionais, estéticos e psicológicos dependendo do local da lesão. A administração tópica de 7,12-dimetilbenz[a]antraceno (DMBA) e 12-O- Tetradecanoilforbol-13-acetato (TPA) induz ao aparecimento de tumores cutâneos benignos em camundongos, alguns dos quais evoluíram para CEC. Este protocolo tem sido utilizado para analisar os efeitos de muitos agentes quimiopreventivos que podem bloquear ou inibir os mecanismos de ação da carcinogênese química. Comparamos os efeitos de agentes quimiopreventivos em um modelo animal que foi induzido à carcinogênese de pele. Nas bases de dados Scopus, PubMed e EMBASE, buscamos manuscritos publicados entre 16 de junho de 2011 e 16 de junho de 2021. Excluímos estudos realizados in vitro ou em camundongos transgênicos; além disso, estudos sem dosagem de drogas, via de administração ou incidência de tumores foram excluídos. Selecionamos 26 estudos e analisamos suas principais características e os resultados da análise da tumorigênese. A maioria dos agentes quimiopreventivos tem demonstrado excelente potencial para inibir o desenvolvimento de tumores cutâneos. Esta revisão também discute a padronização de estudos em modelos animais para garantir melhores respostas e futuros ensaios clínicos randomizados para tratamento e prevenção do câncer.
El carcinoma de células escamosas (CCE) es un cáncer de piel no melanoma, cuyo principal factor de riesgo es la exposición crónica al sol. La cirugía de escisión es el tratamiento más indicado; sin embargo, los pacientes pueden sufrir daños funcionales, estéticos y psicológicos dependiendo de la localización de la lesión. La administración tópica de 7,12-dimetilbenz[a]antraceno (DMBA) y 12-O-Tetradecanoilforbol-13-acetato (TPA) inducen a la aparición de tumores cutáneos benignos en ratones, algunos de los cuales se convierten en CCE. Este protocolo se ha utilizado para analizar los efectos de muchos agentes quimiopreventivos que pueden bloquear o inhibir los mecanismos de acción de la carcinogénesis química. Comparamos los efectos de los agentes quimiopreventivos en un modelo animal de carcinogénesis cutánea inducida. En las bases de datos Scopus, PubMed y EMBASE, se buscaron los manuscritos publicados entre el 16 de junio de 2011 y el 16 de junio de 2021. Se excluyeron los estudios realizados in vitro o en ratones transgénicos; además, se excluyeron los estudios sin dosis de fármacos, vía de administración o incidencia tumoral. Se seleccionaron 26 estudios y se analizaron sus características principales y los resultados del análisis de la tumorigénesis. La mayoría de los agentes quimiopreventivos han mostrado un excelente potencial para inhibir el desarrollo de tumores cutáneos. Esta revisión también analiza la estandarización de los estudios en modelos animales para garantizar mejores respuestas y futuros ensayos clínicos aleatorios para el tratamiento y la prevención del cáncer.
Subject(s)
Animals , Rats , Skin Neoplasms/drug therapy , Chemoprevention , Antineoplastic Agents , Tetradecanoylphorbol Acetate , Models, Animal , 9,10-Dimethyl-1,2-benzanthracene/analysis , Carcinogenesis , PhytochemicalsABSTRACT
The aim of this study was to determine the prevalence of cutaneous neoplasms in horses treated at the Center for the Development of Livestock at the Federal University of Bahia, as well as to correlate it with the coat color, breed, and age of the animal. For that, the attendance records for the last ten years were reviewed. When evaluating the files, 13 cases of cutaneous tumor in horses confirmed by histopathology and cytology were observed. The most prevalent skin tumors were sarcoid (38.5%), melanoma (23%), and fibrosarcoma (15.4%). Regarding the equine coat color, gray and sorrel horses were the most frequent with 30.7% and 23.1% of cases, respectively. As for the equine breed, the mangalarga marchador was the most prevalent (38.4%). Regarding age, 38.46% of the horses were up to 5 years old, 30.77% of the animals were between 4 and 10 years old, and 30.76% were between 11 and 16 years old. In the end, it can be concluded that sarcoid and melanoma were the most prevalent neoplasms.
Objetivou-se com este trabalho determinar a prevalência de neoplasias cutâneas em equinos atendidos no Centro de Desenvolvimento da Pecuária da Universidade Federal da Bahia, bem como correlaciona-la com a pelagem, raça e idade do animal. Para tanto revisou-se as fichas de atendimento dos últimos dez anos. Ao avaliar as fichas, observou-se 13 casos de tumor cutâneo em equinos confirmado por histopatologia ou citologia. Os tumores cutâneos mais prevalentes foram sarcoide (38,5%), melanoma (23%) e fibrossarcoma (15,4%). Com relação a pelagem, equinos tordilhos e alazões foram os mais frequentes com 30,7% e 23,1% dos casos, respectivamente. Quanto as raças, a mangalarga marchador foi a mais prevalente (38,4%). Em relação a idade, 38,46% dos equinos possuíam até 5 anos de idade, 30,77% dos animais apresentavam idade entre 4 e 10 anos e, 30,76% apresentavam idade entre 11 e 16 anos. Ao fim, pode-se concluir que o sarcoide e o melanoma foram as neoplasias mais prevalentes.
Subject(s)
Animals , Skin Diseases/veterinary , Skin Neoplasms/veterinary , Retrospective Studies , Fibrosarcoma/veterinary , Animal Fur/cytology , Horses/abnormalities , Melanoma/veterinaryABSTRACT
El tratamiento correcto de carcinoma escamoso avanzado requiere de un manejo multidisciplinar entre cirujanos, anatomopatólogos, radioterapeutas y radiólogos. Los protocolos están claros cuando nos hallamos ante una enfermedad localizada, sin embargo, cuando la enfermedad es metastática no existe evidencia científica de los pasos a seguir. Presentamos una paciente con un carcinoma escamoso del ano con una única metástasis cutánea metacrónica que fue tratada con cirugía y radioterapia posterior con buena respuesta.
The right therapy of anal cancer needs a multidisciplinary management of surgeons, pathologists, radiotherapists and radiologist. The treatment of squamous cell carcinoma of the anal canal is well-known when the patient presents a locally disease, nevertheless, there is a lack of information with the advanced anal cancer. We report a case of a 74-year-old woman with a solitary methachronical cutaneous metastasis of anal cancer which responded perfectly to surgery and radiotherapy.
A correta terapêutica do câncer anal necessita de uma gestão multidisciplinar de cirurgiões, patologistas, radio terapeutas e radiologistas.O tratamento do carcinoma espinocelular do canal anal é bem conhecido quando o paciente apresenta uma doença local, porém, há uma falta de informação sobre o câncer anal avançado. Relatamos o caso de uma mulher de 74 anos com metástase cutânea metacrônica solitária de câncer anal que respondeu perfeitamente à cirurgia e à radioterapia.
Subject(s)
Humans , Female , Aged , Anal Canal/surgery , Skin Neoplasms/surgery , Carcinoma, Squamous Cell/surgery , Anus Neoplasms/complications , Skin Neoplasms/secondary , Carcinoma, Squamous Cell/secondary , Neoplasm Recurrence, LocalABSTRACT
Introducción: El fotodaño es la agresión producida por la radiación solar en la piel. A su vez, la radiación ultravioleta es uno de los primeros agentes considerados como generadores de cáncer. Objetivo: Caracterizar a los pacientes con neoplasias cutáneas y otras afecciones causadas por fotodaño, según variables clínicas seleccionadas. Métodos: Se realizó un estudio transversal, observacional, clínico, descriptivo y retrospectivo de 64 pacientes diagnosticados con alguna afección causada por fotodaño, pertenecientes al área de salud del consultorio médico No. 11 del Policlínico Aquiles Espinosa Salgado de Las Tunas, desde enero del 2020 hasta igual periodo del 2022. Se analizaron variables, tales como edad, sexo, color de la piel, fototipo de piel, ocupación, uso regular de medios de protección solar antes de los 18 años de edad y actualmente, así como enfermedad dermatológica causada por fotodaño. Resultados: Predominaron el grupo etario de 60 años y más (43,7%), el sexo femenino (54,7 %), el color de la piel blanco (98,5 %), el fototipo de piel III (59,4 %) y los trabajadores estatales (53,1%).Se halló, que 90,6 % de los pacientes no tenían antecedentes de exposición a radiaciones no ultravioletas; 25,0 % refirió usar regularmente algún medio de protección antes de los 18 años de edad y 51,5 % lo emplean actualmente. La enfermedad dermatológica causada por fotodaño que primó fue el cáncer de piel (37,5 %). Conclusiones: Este estudio denotó la pertinencia y necesidad de identificación de las características clínicas de los pacientes con afecciones causadas por fotodaño en el consultorio médico referido.
Introduction: Photodamage is the aggression caused by solar radiation in the skin. In turn, the ultraviolet radiation is one of the first agents considered as cancer generators. Objective: Characterize the patients with cutaneous neoplasms and other affections caused by photodamage, according to selected clinical variables. Methods: A cross-sectional, observational, clinical, descriptive and retrospective study of 64 patients diagnosed with some affection caused by photodamage was carried out, belonging to the health area of the doctor office No. 11 of Achiles Espinosa Salgado Polyclinic in Las Tunas, from January, 2020 to the same period in 2022. Some variables were analyzed, such as age, sex, color of the skin, skin photo type, occupation, regular use of solar protection means before the 18 years and now, as well as dermatologic disease caused by photodamage. Results: There was a prevalence of the 60 years and over age group (43.7 %), female sex (54.7 %), color of the skin white (98.5 %), skin photo type III (59.4 %) and the state workers (53.1 %). It was found that 90.6 % of the patients didn't have history of exhibition to non ultraviolet radiations; 25.0 % referred to use some means of protection regularly before the 18 years and 51.5 % use it at the moment. The dermatologic disease caused by photodamage that prevailed was the skin cancer (37.5 %). Conclusions: This study denoted the relevance and necessity to identify the clinical characteristics of the patients with affections caused by photodamage in the doctor office abovementioned.
Subject(s)
Skin Neoplasms , Lentigo , Primary Health Care , DermatologyABSTRACT
El cáncer de piel es la neoplasia maligna más frecuente en Uruguay así como a nivel mundial, donde muere una persona cada menos de cuatro días por ésta causa. La medida de prevención primaria más efectiva es tener hábitos de fotoprotección, lo cual se consigue mediante la educación en salud y campañas preventivas. En el presente trabajo se resumen los resultados del examen físico realizado a funcionarios del Hospital de Clínicas en el contexto de la Campaña de Prevención de Cáncer de Piel 2017 y los hábitos y conocimientos de fotoprotección de los mismos. La amplia mayoría de los asistentes considera que cuenta con información suficiente sobre cómo protegerse del sol, que proviene, en un 39% de los casos de la televisión. Aún asi, el 41% de ellos, sólo se protege en ocasiones especiales como viajes y verano y únicamente 3 de los participantes emplea medidas adecuadas. Con respecto a campañas previas, 94% no recordaba otra campaña de prevención de cáncer de piel y era la primera vez que concurría a una el 99% de los individuos, lo que pone en manifiesto la necesidad de reforzar la planificación y ejecución de campañas y medidas efectivas para la promoción y prevención del cáncer de piel en los próximos años a fin de lograr disminuir la incidencia de cáncer de piel que continúa en aumento.
O câncer de pele é a neoplasia maligna mais frequente no Uruguai e no mundo, onde uma pessoa morre a cada menos de quatro dias por essa causa. A medida de prevenção primária mais eficaz é ter hábitos fotoprotetores, o que é alcançado por meio de educação em saúde e campanhas preventivas. Este artigo sintetiza os resultados do exame físico realizado em funcionários do Hospital de Clínicas no contexto da Campanha de Prevenção do Câncer de Pele 2017 e seus hábitos e conhecimentos sobre fotoproteção. A grande maioria das pessoas considera que possui informações suficientes sobre como se proteger do sol, o que ocorre em 39% dos casos de televisão. Ainda assim, 41% deles são protegidos apenas em ocasiões especiais, como viagens e verão, e apenas 3 dos participantes usam medidas adequadas. Com relação às campanhas anteriores, 94% não se lembraram de outra campanha de prevenção do câncer de pele e foi a primeira vez que 99% dos indivíduos compareceram, o que evidencia a necessidade de reforçar o planejamento e a execução de campanhas e medidas eficazes para a promoção e prevenção do câncer de pele nos próximos anos, a fim de reduzir a incidência de câncer de pele que continua a aumentar.
Skin cancer is the most frequent malignancy in Uruguay as well as worldwide, where a person dies every less than four days for this cause. The most effective prevention measure is to have photoprotective habits, which is achieved through health education and preventive campaigns. This paper summarizes the results of the physical examination performed on officials of the Hospital de Clínicas in the context of the 2017 Skin Cancer Prevention Campaign and their habits and knowledge of photoprotection. The vast majority of individuals consider that they have enough information on how to protect themselves from the sun, which comes in 39% of television cases. Still, 41% of them are only protected on special occasions such as trips and summer and only 3 of the participants use adequate measures. With respect to previous campaigns, 94% did not remember another skin cancer prevention campaign and it was the first time that 99% of the individuals attended, which highlights the need to reinforce the planning and execution of campaigns and effective measures for the promotion and prevention of skin cancer in the coming years in order to reduce the incidence of skin cancer that continues to increase.
Subject(s)
Humans , Male , Female , Adult , Skin Neoplasms/prevention & control , Health Knowledge, Attitudes, Practice , Health Personnel , Habits , Protective Clothing/statistics & numerical data , Sunscreening Agents , Uruguay/epidemiology , Cross-Sectional Studies , Health Surveys , Access to InformationABSTRACT
Resumen El Xeroderma Pigmentoso (XP) es un trastorno poco frecuente, autosómico recesivo y caracterizado por una extrema sensibilidad a la radiación ultravioleta (RUV) de la luz solar, que produce una reparación defectuosa del daño del ADN y como consecuencia, marcada predisposición al desarrollo de cáncer de piel. Clínicamente, se manifiesta por fotosensibilidad, cambios cutáneos pigmentarios y envejecimiento prematuro de la piel. Este trastorno afecta aproximadamente 1 de cada 250.000 habitantes por año en Estados Unidos. Presentamos el caso de una paciente de 12 años con un Xeroderma Pigmentoso detectado a los 6 meses, quien desarrolló una lesión ulcerada en la vertiente nasal izquierda con reporte de patología de Angiosarcoma (AS) con CD31, EGR y CD34 positivos. La paciente fue tratada con resección amplia de la lesión y quimioterapia adyuvante con Plaquitaxel y Doxorrubicina sin radioterapia.
Abstract Xeroderma Pigmentosum is a rare autosomal recessive disorder characterized by extreme sensitivity to ultraviolet radiation (UVR) from sunlight that results in a defective repair of DNA damage and, as a consequence, a marked predisposition to the development of cancer of the skin. Its clinical manifestations are photosensitivity, pigmentary skin changes, and premature aging of the skin. This disorder affects approximately 1 in 250,000 individuals per year in the United States. We present the case of a 12-year-old patient with Xeroderma Pigmentosum detected at 6 months of age, who developed an ulcerated lesion on the left nasal slope with a pathology report of angiosarcoma (AS), which we positive for ERG, CD31, and CD34. The patient was treated with wide resection of the lesion and adjuvant chemotherapy with paclitaxel and doxorubicin without radiation therapy.
Subject(s)
Male , Child , Skin Neoplasms , Xeroderma Pigmentosum , Radiotherapy , Skin , Chemotherapy, Adjuvant , HemangiosarcomaABSTRACT
ABSTRACT Background: Melanocytic lesions of the central nervous system (CNS) are an infrequent, broad and diverse group of entities, both benign and malignant, found in all age groups, with imaging findings ranging from well-circumscribed focal lesions to diffuse leptomeningeal involvement. On MRI, they are usually distinguished by a high signal on T1WI sequences, given the paramagnetic effect of melanin, thus making it difficult to differentiate among them. Objective: To describe the imaging and epidemiological characteristics of a retrospective series of CNS melanocytic lesions. Methods: MR images of 23 patients with CNS melanocytic lesions diagnosed between January 2012 and June 2018 were analyzed. Results: Most patients were female (14/23; 61%), with a median age of 47 years (range: 3 weeks to 72 years). The primary melanocytic lesions accounted for 8/19 cases (42.1%), which included neurocutaneous melanosis, meningeal melanocytomas and primary malignant melanomas. Secondary melanocytic lesions (metastatic) accounted for 10/19 cases (52.6%). There was one case of a tumor with secondary melanization, from a melanocytic neuroectodermal tumor of infancy. There were also four cases of primary ocular melanomas. The most frequent findings were the cerebral location, high T1WI signal and marked contrast-enhancement. Conclusions: The present review describes the wide variety of melanocytic lesions that could affect the CNS, emphasizing the MRI characteristics. Knowledge of the imaging, clinical and epidemiological characteristics of CNS melanocytic lesions is essential for their correct interpretation, given the significant overlap between lesion features and the variable prognosis.
RESUMEN Antecedentes: Las lesiones melanocíticas del sistema nervioso central (SNC) corresponden a un grupo infrecuente, amplio y diverso de entidades, tanto benignas como malignas, encontradas en todos los grupos etarios, con hallazgos imagenológicos que van desde lesiones focales bien circunscritas hasta un compromiso leptomeníngeo difuso. A la RM se distinguen por la alta señal en la secuencia T1WI, dado el efecto paramagnético de la melanina, haciendo difícil la diferenciación entre ellas. Objetivo: Describir las características epidemiológicas y de de una serie retrospectiva de lesiones melanocíticas del SNC. Métodos: Revisión de imágenes de RM de 23 pacientes con lesiones melanocíticas del SNC diagnosticadas entre enero de 2012 y junio de 2018. Resultados: La mayoría de los pacientes fueron mujeres (14/23; 61%), con edades comprendidas entre las 3 semanas de vida hasta los 72 años. Las lesiones melanocíticas primarias representaron 8/19 (42,1%), incluyendo: melanosis neurocutáneas, melanocitomas meníngeos y melanomas malignos primarios. Las lesiones melanocíticas secundarias (metastásicas) representaron 10/19 casos (52,6%). Hubo un caso de tumor con melanización secundaria (tumor neuroectodermico melanocítico de la infancia). Se incluyeron cuatro casos de melanomas oculares primarios. Los hallazgos más frecuentes fueron la localización cerebral, el aumento de señal T1 y el acentuado realce con el gadolinio. Conclusiones: Se describe la amplia variedad de lesiones melanocíticas encontradas en el SNC, enfatizando sus características a la RM. El conocimiento de sus características imagenológicas, clínicas y epidemiológicas es fundamental para su correcta interpretación, dado la notable superposición entre las presentaciones de las lesiones y lo variable de sus pronósticos.
Subject(s)
Humans , Female , Infant, Newborn , Adult , Melanosis/complications , Melanosis/pathology , Nevus, Pigmented/complications , Nevus, Pigmented/pathology , Skin Neoplasms , Central Nervous System/pathology , Retrospective StudiesABSTRACT
Abstract Background: Infantile hemangiomas (IH) occur in approximately 4% to 10% of the pediatric population. The identification of clinical subtypes and conditions that indicate increased risk for complications is essential for therapeutic success. Objectives: To identify risk factors for complications, recurrence and unaesthetic sequelae. Methods: Retrospective cohort of patients with infantile hemangiomas undergoing follow-up at the Dermatology Service of Universidade Federal de Ciências da Saúde de Porto Alegre, between 2006 and 2018. Results: 190 patients were included; 24% had some type of complication, ulceration being the most frequent, and 86% required treatment. On correlation, ulceration was statistically related to mixed IH (p = 0.004), segmental IH (p < 0.01) and location in the gluteal region (p = 0.001). The mean time of treatment with propranolol was 12.7 months. Patients with PHACES syndrome and segmental infantile hemangioma required longer treatment (p < 0.001 and p = 0.0407, respectively), as well as those who started treatment after five months of life (p < 0.0001). Recurrence occurred in 16.6% of the treated patients, all-female; 94% were located on the head and neck (mainly on the upper eyelid, cyrano, S3 segment, and with parotid involvement); 61% and 38.8% were of the mixed and deep subtypes, respectively. Approximately 1/3 of the patients had some unaesthetic sequelae. Study limitations: As this is a retrospective study, data and photos of some patients were lost. Conclusions: Mixed and segmental hemangiomas are risk factors for ulceration and sequelae. Recurrence occurs more often in females and segmental hemangiomas. Segmental infantile hemangioma and PHACES syndrome require a longer time of treatment. Specific protocols are required for infantile hemangiomas with a high risk of recurrence.
Subject(s)
Humans , Female , Infant , Child , Skin Neoplasms , Hemangioma/drug therapy , Hemangioma/epidemiology , Propranolol/therapeutic use , Retrospective Studies , Risk Factors , Treatment OutcomeABSTRACT
Abstract Basaloid follicular hamartoma is a benign, superficial malformation of hair follicles that can be mistaken both clinical and histopathologically for basal cell carcinoma. Basaloid follicular hamartoma has been linked to a mutation in the PTCH-1 gene, which is part of the same pathway involved in Gorlin-Goltz syndrome. Here we present a 9-year-old patient with an asymptomatic congenital lesion on the forehead, which increased in size over the years. Histopathology showed a basaloid follicular hamartoma associated with follicular mucinosis and inflammation. Gorlin-Goltz syndrome was ruled out by clinical examination.
Subject(s)
Humans , Child , Skin Neoplasms , Carcinoma, Basal Cell , Mucinosis, Follicular , Hamartoma/complications , InflammationABSTRACT
Fibropapillomatosis (FP) is an infectious disease caused by Chelonid alphaherpesvirus 5 (ChHV5). Nevertheless, its clinical manifestations are considered multifactorial. Due to its relevance, FP is currently monitored in sea turtle populations in the United States, Australia, Caribbean, and Brazil. Between 2000 and 2020, the TAMAR Project/ TAMAR Project Foundation analyzed the prevalence of FP in nine states and oceanic islands along the Brazilian coast, including Fernando de Noronha Archipelago (FNA), a historically FP-free area. A total of 4,435 green sea turtles (Chelonia mydas) were monitored from 2010 to 2016. Additionally, in 2012 and 2014, 43 FP-free skin samples were analyzed for ChHV5 using a qualitative PCR for the UL30 polymerase (pol) sequence. In 2015, a bilateral ocular nodule characterized as an FP tumor was reported in one of the monitored individuals undergoing rehabilitation. Tissue samples were collected following surgical removal of the tumor. Characterization of a 454 bp UL30 polymerase gene revealed a ChHV5 sequence previously reported in other areas of the Atlantic Brazilian coast. In the years following this finding from January 2017 to March 2020, a total of 360 C. mydas were monitored in the same area and no FP tumors were detected. This is the first report of FP and the first detection of ChHV5 in FNA, a finding of great concern considering this site's historical absence of FP occurrence. This study highlights the importance of monitoring this disease in historically FP-free areas of the Brazilian Atlantic coast.(AU)
A fibropapilomatose (FP) é uma doença infecciosa causada pelo Chelonid alphaherpesvirus 5 (ChHV5). No entanto, as manifestações clínicas da doença são consideradas multifatoriais. Esta doença é monitorada atualmente em populações de tartarugas marinhas nos EUA, Austrália, Caribe e Brasil. Desde 2000, o Projeto TAMAR/Fundação Projeto TAMAR analisa a presença de FP em nove estados da costa brasileira e ilhas oceânicas, incluindo o arquipélago de Fernando de Noronha, uma área historicamente livre de FP. Um total de 4.435 indivíduos de Chelonia mydas foram monitorados de 2010 a 2016 e 43 amostras de pele foram analisadas para detectar ChHV5 em 2012 e 2014 com o objetivo de avaliar a presença do vírus em tecidos sem FP, usando uma PCR qualitativa para detecção de sequências do gene da UL30 polimerase. Em 2015, uma tartaruga verde (C. mydas) foi relatada com um nódulo ocular bilateral caracterizado como FP. Amostras de tecido foram coletadas durante sua reabilitação e procedimento cirúrgico para remover o tumor. A caracterização parcial de uma sequência de 454 bp do gene UL30 polimerase detectou ChHV5 anteriormente relatado em outras áreas da costa atlântica brasileira. Após estes achados, de janeiro de 2017 a março de 2020, um total de 360 indivíduos de C. mydas foram monitorados e nenhum caso de FP foi registrado. Este é o primeiro relato de FP e a primeira caracterização de ChHV5 no arquipélago de Fernando de Noronha, uma questão preocupante e que ressalta a importância do monitoramento desta doença em áreas historicamente livres de FP na costa atlântica brasileira.(AU)
Subject(s)
Animals , Papilloma/veterinary , Skin Neoplasms/veterinary , Tumor Virus Infections/veterinary , Turtles , Herpesviridae Infections/veterinary , Herpesviridae , Polymerase Chain Reaction/methodsABSTRACT
RESUMO Objetivo Analisar o perfil clínico de pacientes portadores de neoplasias escamosas da superfície ocular. Métodos Foram avaliados os principais fatores de risco envolvidos na gênese das neoplasias escamosas da superfície ocular, as características clínicas dos pacientes e os hábitos comportamentais associados. Foram incluídos neste trabalho de coorte histórica 80 pacientes com diagnóstico anatomopatológico de neoplasia escamosa da superfície ocular atendidos entre os anos de 2010 e 2020 em um hospital referência em oculoplástica e segmento anterior de Santa Catarina. Os dados clínicos e desfechos foram avaliados por meio da análise de prontuário e entrevista, sendo posteriormente tabulados no Excel e submetidos à analise estatística por meio do software Statistical Pakage for the Social Sciences, versão 16. Resultados Foi observado que 73,8% (n=59) eram do sexo masculino. A média de idade da amostra foi de 62 anos. Quanto ao fototipo de pele, de acordo com a escala de Fitzpatrick, constatou-se que a maioria apresentou os fototipos 1 e 2 (22; 27,5% e 44; 55%, respectivamente). Em relação à exposição ocupacional ao sol/radiação, 48% (n=60) apresentaram história de exposição ocupacional, sendo que, destes, 28 pacientes trabalhavam no setor de agricultura. Dos pacientes da amostra, 33 (41,2%) apresentavam histórico pessoal de neoplasias de pele, sendo que, destes, três apresentavam diagnóstico de xeroderma pigmentoso. Quanto ao hábito de uso de fatores de proteção solar, 61% (n=49) da amostra negou o hábito. Foi evidenciada associação estatisticamente significativa entre o hábito de usar fatores de proteção solar e histórico pessoal de neoplasias de pele. Em relação ao tipo de neoplasia escamosa, a maioria dos pacientes (72; 90%) apresentou diagnóstico anatomopatológico de carcinoma espinocelular ocular. Conclusão O perfil clínico epidemiológico dos pacientes portadores de neoplasias escamosas da superfície ocular neste estudo, predominantemente de carcinoma espinoceular ocular, foi de homens, idosos, de pele clara (fototipo 2) e com histórico importante de exposição aos raios solares ultravioleta A e B. Comorbidades imunodepressoras (HIV e transplante de órgão sólido) e doenças dermatológicas (albinismo e xeroderma pigmentoso) associaram-se ao aparecimento das neoplasias escamosas da superfície ocular em idade mais precoce. Em pacientes com histórico pessoal prévio de neoplasias de pele, foi evidenciado o hábito de uso de fatores de protetor solar mais presente em relação aos demais.
ABSTRACT Objective To analyze the clinical profile of patients with ocular surface squamous neoplasms (OSSN). Methods The main risk factors involved in the genesis of the ocular surface squamous neoplasms, the clinical features, and the behavioral habits associated were evaluated. This historical cohort study included 80 patients with anatomopathological diagnosis of OSSN who were treated between 2010-2020 at a reference hospital in oculoplastic and anterior segment in Santa Catarina. The clinical data and outcomes were evalated through the analysis of medical records and interviews, being later tabulated in Excel and analyzed using the SPSS 16 software. Results Regarding the clinical profile of the patients in the sample, 73.8% (n = 59) were male. The mean age of the sample was 62 years old. As for the skin phototype, according to the Fitzpatrick scale, most of the sample presented the phototype 1 and 2 (27.5% n = 22; and 55% n = 44 respectively). Regarding occupational exposure to the sun / radiation, 48% (n = 60) had history of occupational exposure, and of these, 28 patients worked in the agricultural area. Of the patients of the sample, 33 (41.2%) had a personal history of skin neoplasms, and of these, 3 had diagnosis of xeroderma pigmentosum. As for the habit of using sun protection factors, 61% (n = 49) of the sample denied the habit. A statistically significant association was evidenced between the habit of using sun protection factors and people's history of skin cancer. Regarding the type of squamous neoplasia, most patients in the 90% sample (n = 72) had an anatomopathological diagnosis of ocular squamous cell carcinoma. Conclusion The clinical epidemiological profile of patients with OSSN in this study, predominantly ocular squamous cell carcinoma, was men, elderly, fair-skinned (phototype 2) and with an important history of exposure to UVA and UVB rays. Immunosuppressive comorbidities (HIV, solid organ transplant) and dermatological diseases (albinism, xeroderma pigmentosum) are associated with the appearance of OSSN at an early age. In patients with a previous personal history of skin neoplasms, the habit of using sunscreen factors was more present than in the other patients.