ABSTRACT
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
Resumen: Introducción: el subtipo histopatológico es uno de los determinantes fundamentales en la clasificación de riesgo de los carcinomas cutáneos. Surge de una biopsia incisional que representa solo un porcentaje de la masa tumoral, siendo la principal preocupación la no detección de un subtipo agresivo. De ahí nace el interés de comparar la similitud entre ésta y la pieza de escisión quirúrgica (debulking) de la cirugía micrográfica de Mohs (CMM). Objetivos: comparar los resultados histopatológicos entre la biopsia incisional y el debulking en los carcinomas cutáneos tratados con CMM en el Servicio de Dermatología del Hospital de Clínicas en el período de noviembre de 2013 a marzo de 2019. Metodología: estudio retrospectivo descriptivo, se analizaron 202 pacientes con carcinomas de piel no melanoma (CPNM) sometidos a CMM en el servicio de Cirugía Dermatológica del Hospital de Clínicas "Dr. Manuel Quintela" entre noviembre de 2013 y marzo de 2019. Resultados: únicamente se consideran los casos donde en el debulking se halló tumor. Del total, la biopsia coincidió con el debulking en 61,39% de los casos. El debulking mostró un subtipo agresivo que no fue detectado en la biopsia en 8,41% de los casos. Conclusiones: el estudio histopatológico del debulking ha demostrado ser relevante, siendo la biopsia incisional parcialmente representativa para determinar el subtipo histopatológico de un CPNM, ya que aproximadamente 1 de cada 10 carcinomas podrían ser subdiagnosticados y tratados de manera insuficiente.
Abstract: Introduction: histological subtype is a vital element in determining the risk of skin cancer. It may be determined by an incisional biopsy which represents just a percentage of the tumor mass, the main concern lying in its potential failure to detect an agressive subtype. Therefore, comparing the results of biopsies with the surgically obtained piece with Mohs micrographic surgery is significantly relevant. Objective: to compare histopathologic evaluation results of incisional biospy and debulking in skin cancer treated with Mohs micrographic surgery at the Dermatology Service of the Clinicas University Hospital, between November, 2013 and March, 2019. Methodology: retrospective, descriptive study analysing 202 non-melanoma carcinomas which were treated with Mohs micrographic surgery the Dermatology Service of the "Dr. Manuel Quintela" Clinicas Hospital, between November, 2013 and March, 2019. Results: the study only considered the cases where bulking identified the tumor. Biopsy matched debulking in 61.39% of cases. Debulking detected an agressive subtype that was not detected in the biopsy in 8.41% of the cases. Conclusions: the hystopathological study of debulking has proved to be relevant, and the incisional biopsy was found to be partially representative in determining the histopathological subtype of non-melanoma carcinomas, since approximately 1 out of 10 carcinomas could be underdiagnosed and not appropriately treated.
Resumo: Introdução: o subtipo histopatológico é um dos determinantes fundamentais na classificação de risco dos carcinomas cutâneos. Identifica-se na biópsia incisional que representa apenas uma porcentagem da massa tumoral, sendo a principal preocupação a não detecção de um subtipo agressivo. Daí o interesse de comparar a semelhança entre esta e o material de excisão cirúrgica (citorreduçao - debulking) da Cirurgia Micrográfica de Mohs (CMM). Objetivos: comparar os resultados histopatológicos entre biópsia incisional e citorredução em carcinomas de pele tratados com CTM no serviço de Dermatologia do Hospital de Clínicas de novembro de 2013 a março de 2019. Metodologia: estudo descritivo retrospectivo onde foram analisados 202 carcinomas de pele não melanoma (NSCLC) submetidos a CCM no serviço de Cirurgia Dermatológica do Hospital de Clínicas "Dr. Manuel Quintela" entre novembro de 2013 e março de 2019. Resultados: foram considerados somente os casos em que um tumor foi encontrado em citorredução. Do total, a biópsia coincidiu com a cirurgia citorredutora em 61,39% dos casos. A citorredução mostrou um subtipo agressivo que não foi detectado na biópsia em 8,41% dos casos.
Subject(s)
Mohs Surgery , Cytoreduction Surgical Procedures , Skin Neoplasms , Biopsy , CarcinomaABSTRACT
Resumen: Introducción: la cirugía micrográfica de Mohs es una técnica quirúrgica especializada para el tratamiento del cáncer de piel no melanoma. La histopatología cumple un rol fundamental, y la elección de la tinción es un punto de controversia. Objetivos: comparar el rendimiento de las tinciones de hematoxilina y eosina (HyE) versus azul de toluidina (AT) durante la cirugía. Método: estudio observacional, descriptivo y transversal a partir de noviembre de 2017 hasta mayo de 2018. Se incluyeron las láminas empleadas durante la cirugía en el período mencionado. Estas fueron analizadas por el cirujano de Mohs, tres residentes y una dermopatóloga. Se valoró el rendimiento de ambas tinciones, teniendo en cuenta las características celulares y los elementos del estroma. Resultados: se estudiaron 23 tumores (16 carcinomas basocelulares y 7 carcinomas espinocelulares). Al observarse al microscopio óptico tanto con la tinción de AT como con HyE no se encontraron diferencias significativas entre ambos grupos en lo global, sólo en algunas características, especialmente con la HyE. Conclusiones: es el primer trabajo en Uruguay que compara la eficacia de las dos tinciones durante la cirugía micrográfica de Mohs. Como conclusión tanto la tinción de HyE como el AT son muy buenas técnicas para el diagnóstico de carcinomas cutáneos.
Abstract: Introduction: Mohs micrographic surgery is a specialized surgical technique used to treat nonmelanoma carcinoma. Histopathology plays a vital role in the diagnosis of this condition, and the choice staining method is controversial. Objective: to compare results in the use of hematoxylin and eosin (H&E) versus Toluidine blue (TB) staining during surgery. Method: observational, descriptive and transversal study conducted from November, 2017 until May, 2018 of the slides used during surgeries in the selected period. Slides were analysed by the Mohs surgeon, 3 residents and a dermopathologist to evaluate the results of both staining methods, in consideration of cell features and stromal elements. Results: 23 tumors were analysed (16 Basal Cell carcinomas and 7 Squamous Cell Carcinoma). Microscopic observation of slides prepared with Toluidine blue and hematoxylin and eosin stains did not show significant global differences between both groups, except in terms of a few characteristics, in particular with hematoxylin and eosin stains. Conclusions: this was the first study in Uruguay to evaluate the effectiveness of both staining methods during Mohs micrographic surgery, and it concluded that both Toluidine blue and hematoxylin and eosin stains are very good techniques in evaluating skin-cancer.
Resumo: Introdução: a cirurgia micrográfica de Mohs é uma técnica cirúrgica especializada para o tratamento do câncer de pele não melanoma. A histopatologia desempenha um papel fundamental, onde a escolha da coloração é um ponto de controvérsia. Objetivos: comparar o desempenho das colorações de hematoxilina e eosina versus azul de toluidina durante a cirurgia. Método: estudo observacional, descritivo e transversal de novembro de 2017 a maio de 2018. Foram incluídas as lâminas utilizadas durante as cirurgias no referido período. Estas foram analisadas pelo cirurgião especializado na técnica de Mohs, 3 residentes e um dermatopatologista onde foi avaliado o desempenho de ambas as colorações, levando em consideração as características celulares e os elementos do estroma. Resultados: foram estudados 23 tumores (16 carcinomas basocelulares e 7 carcinomas espinocelulares). Quando observados ao microscópio de luz para coloração AT e H&E, não foram encontradas diferenças significativas entre os dois grupos em geral, apenas em algumas características, especialmente com o H&E. Conclusões: é o primeiro estudo no Uruguai que compara a eficácia dos 2 corantes durante a cirurgia micrográfica de Mohs. Em conclusão, tanto a coloração com hematoxilina e eosina quanto com azul de toluidina são técnicas muito boas para o diagnóstico de carcinomas de pele.
Subject(s)
Mohs SurgeryABSTRACT
Objetivo: Averiguar a efetividade da utilização da cirurgia de MOHS no manejo de tumores cutâneos tipo não melanoma em comparação a outros métodos de terapia. Métodos: O estudo consiste em uma revisão sistemática, cuja coleta de artigos ocorreu nas bases de dados MEDLINE, PubMed Central (PMC), LILACS e SciELO, utilizando os termos "Cirurgia de MOHS", "Câncer de pele", "Ensaio clínico", excluindo "melanoma". Resultados: Do total de 132 artigos identificados, foram considerados elegíveis 11. A análise dos artigos demonstrou que a CMM, comparada a outros métodos, apresentou resultados estéticos melhores, além de menor grau de complicações em tumores recorrentes e um custo/benefício variável com o país onde foi feita operação. A CMM também apresentou menores índices de recorrência em todos os estudos. Conclusão: No geral, a cirurgia de MOHS se mostrou um método terapêutico promissor. No entanto, existem ainda poucos estudos comparativos sobre a eficácia da CMM e os que existem se concentram em poucas regiões do mundo. (AU)
Objective: Evaluating the effectiveness of using MOHS surgery in the management of non-melanoma skin tumors compared to other therapy methods. Methods: The study consists of a systematic review, whose search for articles was performed using databases MEDLINE, PubMed Central (PMC), LILACS and SciELO, using the terms "MOHS surgery", "Skin cancer", "Clinical trial", excluding "melanoma". Results: from a total of 132 identified articles, 11 were considered eligible. The analysis of the articles showed that MMS, compared to other methods, presented better cosmetic results, in addition to a lower grade of complications in recurrent tumors and a variable cost/benefit according to the country where the surgery was performed. MMS also had lower recurrence rates in all studies. Conclusion:Overall, MOHS surgery has shown promising therapeutic results. However, there are still few comparative studies on the effectiveness of MMS and those that exist are concentrated in a few regions of the world. (AU)
Subject(s)
Humans , Recurrence , Skin Neoplasms , Effectiveness , Mohs Surgery , Costs and Cost Analysis , MelanomaABSTRACT
Se realizó una búsqueda sobre carcinoma basal de párpado, con el objetivo de describir el contexto actual del tratamiento quirúrgico, no quirúrgico y reconstructivo. Con el fin de eliminar el tumor con las menores secuelas funcionales y estéticas posibles, son aceptadas muchas opciones de tratamiento en el manejo actual de esta patología, que incluyen: tratamientos tópicos (imiquimod, interferones, vismodegib, sonidegib), procedimientos mínimamente invasivos (terapia fotodinámica), modalidades ablativas (curetaje, electrocauterización, criocirugía) y procedimientos altamente especializados (resección quirúrgica convencional, radioterapia o cirugía de Mohs). El tratamiento previo, el subtipo histológico, el sitio y el tamaño de la lesión deben considerarse en la planificación quirúrgica, porque se ha demostrado que afectan las tasas de curación. A partir de estos elementos, se desarrolló un algoritmo para el tratamiento del carcinoma basocelular que podría ayudar a elegir la técnica quirúrgica y los márgenes de seguridad, especialmente en lugares donde la cirugía micrográfica no está ampliamente disponible(AU)
A bibliographic search was conducted about basal eyelid carcinoma with the purpose of describing the current context of surgical, non-surgical and reconstructive treatment. Current management of this condition includes many treatment options aimed at removing the tumor with the least possible functional and esthetic sequels. Among them are the following: topical medication (imiquimod, interferons, vismodegib, sonidegib), minimally invasive procedures (photodynamic therapy), ablative therapy (curettage, electrocauterization, cryosurgery) and highly specialized procedures (conventional surgical resection, radiotherapy or Mohs surgery). Surgical planning should consider the previous treatment, the histological subtype, and the site and size of the lesion. These factors have been shown to affect cure rates. Based on these elements, an algorithm was developed for the treatment of basal cell carcinoma which may be useful in selecting the surgical technique and safety margins, particularly in settings where micrographic surgery is not widely available(AU)
Subject(s)
Humans , Carcinoma, Basal Cell/radiotherapy , Mohs Surgery/methods , Cryosurgery/methods , Eyelids/injuries , Review Literature as Topic , Imiquimod/therapeutic useABSTRACT
Antecedentes: la cirugía micrográfica de Mohs es la técnica de elección, para el tratamiento de cancer de piel no melanoma de alto riesgo. Las características tanto del paciente cmo del tumor que lo definen como de alto riesgo de recidiva son el tamaño, la localización, la recidiva y el estado inmunitario del paciente, entre otros factores. Objetivo: describir el perfil de los pacientes con carcinomas tratados mediante cirugía micrográfica de Mohs en la Cátedra de Dermatología Médico-Quirúrgica del Hospital de Clínicas Dr. Manuel Quintela en período de 7 años y que presentan recidiva. Materiales y métodos: estudio observacional, descriptivo, retrospectivo, unicéntro, de tipo cohorte histórica, en el que se analizaron las características de los pacientes cuyo tumor recidivó tras la cirugía micrográfica de Mohs mediante la revisión de las historias clínicas, y su comparación con las publicaciones sobre el tema. Resultados: en el período mencionado hubo 7 recidivas de las 388 operaciones realizadas (1,8 % del total), con una media de tiempo hasta la recurrencia de 15,3±2,3 meses. Todos eran tumores de alto riesgo, 5 estaban localizados en zonas de alto riesgo, 3 pacientes eran inmunodeprimidos y 2 tenían subtipos histológicos de alto riesgo. Conclusiones: de las 388 operaciones, un 1,8% de los pacientes presentaron recidiva en los 7 años, con un tiempo medio hasta la aparición de esta de 15,3 meses. En general, las características de los pacientes con recidiva coinciden, en parte, con lo referido en la literatura especializada. Sin embargo, se dificulta la comparación con otros estudios porque pocos pacientes cumplieron al menos 5 años de seguimiento. Llama la atención la proporción de tabaquismo y anticoagulación entre los pacientes que evidenciaron recidiva.
Background:Mohs micrographic surgery is the technique of choice for the treatment of high-risk non-melanoma skin cancer.We describe the pacient and tumor´s characteristics that define them as high-risk tumors: size,location,recurrence,immunologicalstateof the patient, within other factors. Objetive: describe the profile of patients with recurrent carcinomas after Mohs micrographic surgery in the Dermatology department of Clinic Hospital Dr. Manuel Quintela in a 7-year period. Methods: observacional, descriptive, single-center, historical cohort study in which patients with recurrent carcinomas after Mohs micrographic surgery were analyzeb by clinical histoty revision and results were compared with the literature. Results: in the mentioned period 7 recurrences within the 388 surgeries were found (1.8%), with a mean time to recurrence of 15.3±2.3 months. It can be highlighted that all of them were high-risk tumors, 5 were at high risk locations, 3 were immunosuppressed and 2 had high risk histological subtypes. Conclusions: within the 7-year period 1.8% of recurrences after Mohs micrographic surgery were found and the mean time to recurrence was 15.3 months. In general, patient´s characteristics were similar to the consulted literature. The high percentage of smokers and anticoagulanted patients is striking compared to all the patients who completed 5 years of follow-up. owever, it is important to take into account that the small number of patients make it dfficult to compare the results with other studies.
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Skin Neoplasms , Carcinoma/surgery , Mohs Surgery , Recurrence , Uruguay , Carcinoma/pathology , Epidemiology, Descriptive , Cross-Sectional Studies , Risk FactorsABSTRACT
Abstract Background: The ear is a region that has a high prevalence of cutaneous carcinomas and several guidelines indicate Mohs micrographic surgery as the first-choice treatment in such cases. Although the technique allows maximum preservation of healthy tissue, many auricular surgical wounds constitute a challenge due to the peculiar local anatomy, with evident curves and reliefs. Auricular reconstruction should prioritize function before aesthetics, but without leaving the latter aside, since postoperative distortions can have a significant psychological impact. Objective: To describe the authors' experience in auricular reconstruction after Mohs surgery and to evaluate the most frequently used repair methods. Methods: Retrospective study of consecutive cases submitted to Mohs surgery and auricular reconstruction, over a period of 3 years. Results: One hundred and one cases were included and the most common repair method was primary closure (n = 35), followed by full-thickness skin graft (n = 30) and flaps (n = 24). In thirty cases, reconstruction methods were associated. Seven patients had complications (partial graft necrosis, postoperative bleeding or infection). Study limitations: Retrospective design and the absence of long-term follow-up of some cases. Conclusions: The dermatologic surgeon should be familiarized with different options for auricular reconstruction. Primary closure and skin grafts were the most frequently used repair methods.
Subject(s)
Skin Neoplasms/surgery , Mohs Surgery , Surgical Flaps , Retrospective Studies , Skin TransplantationABSTRACT
Abstract Mohs micrographic surgery is a specialized form of skin cancer surgery that has the highest cure rates for several cutaneous malignancies. Certain skin cancers can have small extensions or "roots" that may be missed if an excised tumor is serially cross-sectioned in a "bread-loaf" fashion, commonly performed on excision specimens. The method of Mohs micrographic surgery is unique in that the dermatologist (Mohs surgeon) acts as both surgeon and pathologist, from the preoperative considerations until the reconstruction. Since Dr. Mohs's initial work in the 1930s, the practice of Mohs micrographic surgery has become increasingly widespread among the dermatologic surgery community worldwide and is considered the treatment of choice for many common and uncommon cutaneous neoplasms. Mohs micrographic surgery spares the maximal amount of normal tissue and is a safe procedure with very few complications, most of them managed by Mohs surgeons in their offices. Mohs micrographic surgery is the standard of care for high risks basal cell carcinomas and cutaneous squamous cell carcinoma and is commonly and increasingly used for melanoma and other rare tumors with superior cure rates. This review better familiarizes the dermatologists with the technique, explains the difference between Mohs micrographic surgery and wide local excision, and discusses its main indications.
Subject(s)
Humans , Skin Neoplasms/surgery , Carcinoma, Basal Cell/surgery , Carcinoma, Squamous Cell/surgery , Melanoma/surgery , Mohs SurgeryABSTRACT
Abstract Background: Mohs micrographic surgery is worldwide used for treating skin cancers. After obtaining tumor-free margins, choosing the most appropriate type of closure can be challenging. Objectives: Our aim was to associate type of surgical reconstructions after Mohs micrographic surgery with the characteristics of the tumors as histological subtype, anatomical localization and especially number of surgical stages to achieve complete excision of the tumour. Methods: Transversal, retrospective analyses of medical records. Compilation of data such as gender, age, tumor location, histological subtype, number of stages to achieve clear margins and type of repair used. Results: A total of 975 of facial and extra-facial cases were analyzed. Linear closure was the most common repair by far (39%) and was associated with the smallest number of Mohs micrographic surgery stages. This type of closure was also more common in most histological subtypes and anatomical locations studied. Using Poisson regression model, nose defects presented 39% higher frequency of other closure types than the frequency of primary repairs, when compared to defects in other anatomic sites (p< 0.05). Tumors with two or more stages had a 28.6% higher frequency of other closure types than those operated in a single stage (p< 0.05). Study limitations: Retrospective study with limitations in obtaining information from medical records. The choice of closure type can be a personal choice. Conclusions: Primary closure should not be forgotten especially in surgical defects with fewer stages and in non-aggressive histological subtypes in main anatomic sites where Mohs micrographic surgery is performed.
Subject(s)
Humans , Skin Neoplasms/surgery , Carcinoma, Basal Cell/surgery , Plastic Surgery Procedures , Nose , Retrospective Studies , Mohs SurgeryABSTRACT
Abstract Background: High-risk basal cell carcinoma involves a significant rate of basal cell carcinoma that requires Mohs micrographic surgery for definitive treatment. Staged excision with pathologic margin control is a simple, accessible, and curative procedure suggested for the treatment of high-risk basal cell carcinoma. Objective: To evaluate the results of staged excision of high-risk basal cell carcinoma in the head region. Methods: This interventional study was performed on patients with high-risk basal cell carcinoma, who underwent staged excision until the margins were free of tumor. Results: A total of 122 patients (47 females and 75 males) with mean age of 57.66 ± 9.13 years were recruited in this study. Nasal and nodular types were the most common of both clinical and pathologic forms, respectively. Further, 89.3 % of cases were cured by staged excision after four years of follow-up. There was a significant relationship between treatment outcomes and recurrent lesions, multiplicity of risk factors, long-standing disease, and pathologic type. There was also a significant association between the number of surgical excisions and multiplicity of risk factors, as well as recurrence, location, and size of basal cell carcinoma. Study limitations: Lack of magnetic resonance imaging assessment in cases of suspected perineural invasion. Conclusions: High-risk basal cell carcinoma had a high cure rate by staged excision. Patients with more risk factors and those with nasal and recurrent basal cell carcinoma required more staged excisions. Failure of treatment is more probable in patients with more risk factors, long-standing lesions, and high-risk pathologic and recurrent basal cell carcinomas.
Subject(s)
Humans , Male , Female , Aged , Skin Neoplasms/surgery , Carcinoma, Basal Cell , Head and Neck Neoplasms/surgery , Mohs Surgery , Treatment Outcome , Middle Aged , Neoplasm Recurrence, Local/surgeryABSTRACT
Abstract Background: The treatment of basal cell carcinoma depends on its histological subtype. Therefore, a biopsy should be performed before definitive treatment. However, as the biopsy is only a sample of the tumor, it does not always shows every histological subtype present in the neoplasm. Few studies have compared the histological findings of biopsies with the findings of Mohs micrographic surgery. By evaluating the totality of the peripheral margins, in addition to sampling large tumor areas, this technique provides a more representative amount of tissue than preoperative biopsy. Objectives: a) Determine the agreement between the histological subtype of basal cell carcinoma from punch biopsy and the findings of Mohs surgery; b) To assess, among the discordant cases, the prevalence of non-aggressive tumors in the preoperative biopsy that were reclassified as aggressive by Mohs surgery. Methods: Retrospective analysis of 79 cases of basal cell carcinomas submitted to punch biopsy and subsequent Mohs surgery. Results: The agreement between the classification of the subtypes in the biopsy and in Mohs surgery was 40.5%. Punch biopsy was able to predict the most aggressive basal cell carcinoma growth pattern in 83% of cases. Study limitations: Retrospective nature, sample size, and biopsies performed by different professionals. Conclusions: The agreement between the histopathological subtypes of basal cell carcinoma as seen in preoperative biopsy and Mohs surgery was low. However, preoperative biopsy presented good accuracy (83%) in detecting aggressive histopathological subtypes.
Subject(s)
Humans , Skin Neoplasms/surgery , Carcinoma, Basal Cell/surgery , Biopsy , Retrospective Studies , Mohs SurgerySubject(s)
Humans , Skin Neoplasms/surgery , Carcinoma, Basal Cell , Mohs Surgery , Histological TechniquesABSTRACT
La epidermólisis ampollar es un raro trastorno hereditario caracterizado por fragilidad cutánea, formación de ampollas mucocutáneas recurrentes luego de un traumatismo mínimo y cicatrización deficiente de heridas. Además, algunas variantes se han asociado con la aparición de carcinomas espinocelulares. Presentamos el caso clínico de un paciente con epidermólisis ampollar, que presentó un extenso carcinoma espinocelular localizado en cara posterior de brazo. Este fue tratado con cirugía micrográfica de Mohs y el defecto quirúrgico resultante fue reparado aplicando una matriz de regeneración dérmica sobre la herida durante un mes. Posteriormente continuamos con curaciones y ungüento antibiótico sobre la herida dos veces al día, completando la cicatrización con un excelente resultado cosmético y funcional. Enfatizamos en el carácter novedoso de esta opción terapéutica y en su utilidad en pacientes con epidermólisis ampollar.
Epidermolysis bullosa is a rare hereditary disorder characterized by skin fragility, recurrent mucocutaneous blisters following minimal trauma, and compromised wound healing. Moreover, some variants have been associated with squamous cell carcinoma. Following, we present the clinical case of a patient with epidermolysis bullosa, who presented a large squamous cell carcinoma of the arm. It was resected using Mohs micrographic surgery, and the final defect was repaired by applying a dermal regeneration template over the wound for a month. After this period, we continued using cures and antibiotic ointment over the wound twice a day, and healing was completed with excellent cosmetic and functional results. We emphasize the novelty of this therapeutic option, and its usefulness in patients with epidermolysis bullosa.
Subject(s)
Humans , Male , Adult , Skin Neoplasms/surgery , Carcinoma, Squamous Cell/surgery , Mohs Surgery/adverse effects , Epidermolysis Bullosa/surgery , Skin, Artificial , Arm , Skin Neoplasms/complications , Wound Healing , Wounds and Injuries , Carcinoma, Squamous Cell/complications , Epidermolysis Bullosa/etiology , Skin Transplantation/methodsABSTRACT
Introducción: El dermatofibrosarcoma protuberans(DFSP), es uno de los tumores cutáneos menos frecuentes, se clasifica dentro de los sarcomas fibrohistociticos y está caracterizado por un crecimiento lento y progresivo. Métodos: Se realizó una serie de casos retrospectiva de los pacientes con DFSP atendidos en el Centro de la Piel (CEPI) entre 2010 y 2019, se tomó en cuenta la información demográfica, características clínicas, tratamiento y su evolución. Resultados: Seis pacientes fueron diagnosticados y tratados por DFSP en el período evaluado, existió un predominio de mujeres (4 mujeres, 2 hombres) con una media de edad de 58.2 (DE =19,6), tres de ellos presentaron lesiones en forma de placa indurada y los restantes presentaron nódulo único, la localización de las lesiones fueron en hombro, cuello e hipogastrio. El tratamiento más utilizado fue la escisión amplia, ninguno de los pacientes presentó recidivas al primer y quinto año del seguimiento. Conclusión: Es necesario el reconocimiento de las características clínicas típicas de DFSP ya que podría pasar como una tumoración benigna de piel, por lo cual se debe apoyar con el estudio histopatológico frente a la sospecha de este tipo de lesión
Introduction: Dermatofibrosarcoma protuberans (DFSP) is one of the rare tumors found in the fibrohistocytic sarcomas and it is characterized by slow and progressive growth. Methods:A retrospective study of six cases treated at the Skin Center (CEPI) between 2010 and 2019 was carried out. We have take into account demographic information, characteristics, treatment and evolution of the lesions. Results:Six patients were diagnosed and treated by DFSP. There was a predominance of women (4 women, 2 men) with a mean age of 58.2 (SD = 19.6), three of them presented lesions in the form of indurated plaque and the rest presented a unique nodule. The locations of the lesions were the shoulder, neck and hypogastrium. The most commonly used treatment was wide excision, none of the patients presented recurrences at the first and fifth year of follow-up. Conclusion:Recognition of the typical clinical characteristics of DFSP is necessary since it could be mistaken as a benign tumor of the skin. The diagnosis must be always done by histopathological confirmation
Subject(s)
Skin , Mohs Surgery , Dermatofibrosarcoma , Histiocytic SarcomaABSTRACT
Abstract Background: Mohs micrographic surgery is a surgical technique for the treatment of nonmelanoma skin cancer. Surgery begins by removing the visible tumor before excision of the tissue specimens for evaluation of the tumor margins. Objectives: To present a new way to evaluate the material obtained from debulking, by horizontal histological analysis of the fragment. Methods: Descriptive retrospective cross-sectional study based on the medical records and histological lamellae of patients with primary basal cell carcinomas smaller than 1.5 cm submitted to Mohs micrographic surgery and who had the visible tumor analyzed by horizontal histological sections. Results: The sample evaluated included 16 patients with lesions located on the face. Comparing the histopathological examinations of incisional biopsy in vertical sections and debulking in horizontal sections, there was agreement in seven cases. The histological analysis performed in horizontal sections allowed identification of the tumor site in 13 cases, and the relation between tumor and margin showed that in 11 cases, the lateral margin was compromised.Study limitations: The technique was better-applied in lesions smaller than 2 cm. Conclusion: Horizontal histological analysis of debulking has advantages for Mohs surgery, since it allows visualization of almost all tumor extension in the same view plane of the dermatoscopy, allowing better definition of the histological subtype, tumor site, and tumor/margin of lesions less than 1.5 cm.
Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Skin Neoplasms/surgery , Skin Neoplasms/pathology , Carcinoma, Basal Cell/surgery , Carcinoma, Basal Cell/pathology , Mohs Surgery/methods , Biopsy , Cross-Sectional Studies , Retrospective Studies , Treatment Outcome , Dermoscopy , Tumor BurdenABSTRACT
Resumen El dermatofibrosarcoma protuberans (DFSP) es un sarcoma cutáneo de baja incidencia y lento crecimiento que afecta principalmente a personas de entre 20 a 39 años y es más frecuente en afrodescendientes. La localización anatómica más común es el tronco, seguido de las extremidades superiores. La etiología no está clara, pero la mayoría de los casos presentan rearreglos genéticos que involucran los genes COL1A1 y PDGFB. El riesgo de metástasis es bajo, pero tiene tendencia a la recurrencia local, especialmente en: los tumores resecados con márgenes insuficientes, los tumores profundos y los tumores que presentan cambio fibrosarcomatoso. La primera línea de manejo para la enfermedad local es la cirugía con la resección local amplia o la cirugía micrográfica de Mohs (CMM), que ha mostrado recurrencias consistentemente bajas. La radioterapia se ha usado para tumores irresecables o como adyuvancia. En los casos de enfermedad metastásica el manejo de elección es el imatinib.
Abstract Dermatofibrosarcoma protuberans (DFSP) is a low incidence and slow growing cutaneous sarcoma that mainly affects individuals between 20 and 39 years old and is more frequent in black race. The most common anatomical site is the trunk, followed by the upper extremities. The etiology is unclear, but the most cases present genetic rearrangements involving the COL1A1 and PDGFB genes. The risk of metastasis is low, but it tends to local recurrence, especially when section margins were insufficient, in deep tumors or those with fibrosarcomatous change. The first line of treatment for local disease is surgery; wide local resection or Mohs micrographic surgery (MMS). The latter technique has shown consistently low recurrence rate. Radiotherapy has been used for unresectable cases or as adjuvant therapy. Imatinib is useful for metastatic disease.
Subject(s)
Humans , Mohs Surgery , Dermatofibrosarcoma , TherapeuticsABSTRACT
Poucas são as descrições da literatura sobre técnicas cirúrgicas para fechamento de defeitos sincrônicos na face. Relatamos três casos de pacientes com lesões sincrônicas na face, que foram reconstruídas utilizando-se os seguintes tipos de retalhos: dupla rotação Yin-Yang, avanço de dois triângulos de Burrow e combinação de retalho dorsal nasal associado a retalho de transposição. As reconstruções de defeitos sincrônicos na face representam desafios aos cirurgiões dermatológicos, especialmente quando uma das lesões se localiza no nariz. Nos casos que envolvem defeitos relativamente pequenos e não tão distantes entre si, há a possibilidade de se realizar um retalho único para fechamento de ambos os defeitos.
There are a few descriptions in the literature on surgical techniques for the closure of synchronous facial defects. We report three cases of patients with synchronous lesions on the face, which were reconstructed using the following types of flaps: Yin-Yang double-opposing rotation; Burrow's triangle advancement; and a combination of the dorsal nasal flap with the transposition flap. Reconstructions of synchronous facial defects represent challenges to dermatologic surgeons, especially when one of the lesions is located in the nose. In cases involving relatively small defects and not so far apart, there is the possibility of a single flap to close both defects.