Frequency of skin diseases in renal transplant recipients and patients with chronic kidney disease in a tertiary center: a cross-sectional study

ABSTRACT BACKGROUND: The prevalence of chronic kidney disease (CKD) has increased in the recent decades, along with the number of patients in the terminal stages of this disease, requiring transplantation. Some skin disorders are more frequent in patients with CKD and in renal transplant recipients (RTR). OBJECTIVES: To evaluate the frequency of skin diseases in RTR and patients with CKD receiving conservative treatment. DESIGN AND SETTING: This observational cross-sectional study recruited consecutive patients with CKD and RTR from a nephrology clinic at a teaching hospital in Brazil between 2015 and 2020. METHODS: Quantitative, descriptive, and analytical approaches were used. The sample was selected based on convenience sampling. Data were collected from dermatological visits and participants' medical records. RESULTS: Overall, 308 participants were included: 206 RTR (66.9%, median age: 48 years, interquartile range [IQR] 38.0-56.0, 63.6% men) and 102 patients with CKD (33.1%, median age: 61.0 years, IQR 50.0-71.2, 48% men). The frequency of infectious skin diseases (39.3% vs. 21.6% P = 0.002) were higher in RTR than in patients with CKD. Neoplastic skin lesions were present in nine (4.4%) RTR and in only one (1.0%) patient with CKD. Among the RTR, the ratio of basal cell carcinoma to squamous cell carcinoma was 2:1. CONCLUSIONS: This study revealed that an increased frequency of infectious skin diseases may be expected in patients who have undergone kidney transplantation. Among skin cancers, BCC is more frequently observed in RTR, especially in those using azathioprine.

Risk of skin cancer in kidney, liver and heart recipients: A nationwide population-based study in Taiwan

Background: Previous population-based studies in western countries had revealed increased skin cancer risk among transplant recipients compared to the general population. However, population-based studies in Asia on skin cancer among recipients of different transplanted organs were lacking in the literature. Aims: This study aims to estimate skin cancer risk among recipients in Taiwan, examine the association between each specific type of skin cancer and each type of transplanted organ, and compare skin cancer risk between different immunosuppressive regimens. Methods: This population-based retrospective cohort study identified 7550 patients with heart, lung, kidney or liver transplantation and 30,200 controls matched for gender, age and comorbidity index from the National Health Insurance Research Database in Taiwan between 2000 and 2015. Using multivariable Cox proportional hazard models, we estimated the hazard ratios and 95% confidence intervals for the correlation of skin cancer with organ transplantation as well as immunosuppressive regimen. Results: Organ transplant recipients in Taiwan had an increased risk of skin cancer with adjusted hazard ratios of 4.327 (95% confidence intervals 2.740–6.837, P < 0.001), with the greatest risk, observed among heart recipients (adjusted hazard ratios 6.348, 95% confidence intervals 3.080–13.088, P < 0.001). The risk of non-melanoma skin cancer and melanoma was 4.473 (95% confidence intervals 2.568–7.783, P < 0.001) and 3.324 (95% confidence intervals 1.300–8.172, P < 0.001), respectively. When comparing immunosuppressants, those with calcineurin inhibitors carried the highest risk of skin cancer (adjusted hazard ratios 4.789, 95% confidence intervals 3.033–7.569, P < 0.001), followed by those with antimetabolites (adjusted hazard ratios 4.771, 95% confidence intervals 3.025–7.541, P < 0.001). Limitations: We could not evaluate confounding behavioural risk factors of skin cancers that were not documented in the database, nor could we recognize patients’ compliance with immunosuppressants. Conclusion: Organ recipients have a greater risk of skin cancer. Clinicians should inform recipients of the importance of photoprotection and regular dermatologic follow-up

Tratamiento del carcinoma basocelular de la nariz con una combinación de interferones Alpha-2b y Gamma / Treatment of basal cell carcinoma of the nose with a combination of Interferon alpha-2b and gamma

Introducción: El carcinoma basocelular es una neoplasia maligna derivada de las células epidérmicas de los folículos pilosos o células no queratinizadas puede ser desfigurante y originar deformidades o pérdida de la función del órgano afectado, es más frecuente en zonas sobresalientes como la nariz. Objetivo: Describir los resultados de la aplicación de la combinación sinérgica de interferones alpha-2b y gamma en una serie de casos con carcinoma basocelular nasal. Material y métodos: Se realizó un estudio de serie de casos clínicos, se incluyeron 28 pacientes con diagnóstico clínico, dermatoscópico e histopatológico de carcinoma basocelular de la nariz que acudieron a consulta de dermatología del Policlínico Centro de Sancti Spíritus en el período de 17 de enero de 2016 a 28 de diciembre de 2021. Se realizó una evaluación inicial y otra final a las 16 semanas después del comienzo del tratamiento. Se administró 10,5 UI de HeberFERON, 3 veces por semana perilesional e intradérmica hasta completar 9 dosis. Las variables principales fueron la respuesta al tratamiento y presencia o no de evento adversos. Resultados: Predominó el sexo masculino, fototipocutáneo II, localización en el dorso y ala nasal, subtipo clínico nódulo ulcerativo y el histológico sólido. En la mayoría de los pacientes desapreció el tumor al culminar el esquema terapéutico. Como eventos adversos más comunes se presentaron dolor en el sitio de inyección, fiebre, edema y eritema perilesional. Conclusiones: La respuesta al tratamiento fue completa en la mayoría de los pacientes y los eventos adversos los descritos en la literatura sin cambios en la actitud farmacológica(AU)

Introduction: Basal cell carcinoma is a malignant neoplasm derived from epidermal cells of hair follicles or non-keratinized cells with a high potential for local destruction, which can be disfiguring and may invade the surrounding tissue, resulting in deformities or loss of function of the affected organ, being more frequent in protruding areas such as the nose. Objective: To describe the results of the application of the synergistic combination of interferon alpha-2b and gamma in a series of cases with nasal basal cell carcinoma. Material and Methods: An observational, descriptive and longitudinal study was carried out in a series of 28 clinical cases with basal cell carcinoma of the nose who attended the dermatology clinic of Policlínico Centro in Sancti Spiritus in the period from january 2016 to december 2021. Cases with a clinical, dermoscopic and histopathological diagnoses were included. An initial and a final evaluation at the end of the 16 weeks of treatment were carried out; also, 10,5 IU of HeberFERON was administered 3 times per week perilesional and intradermally until completing 9 doses. The main variables were response to treatment and presence or absence of adverse events. Results: Male sex, skin phototype II, location on the dorsum and nasal ala, clinical subtype ulcerative nodule, and solid histological subtype predominated. In most of the patients, the tumor disappeared at the end of the therapeutic regime. The most common adverse events were pain at the injection site, fever, edema and perilesional erythema. Conclusions: There was a complete response to treatment in most patients and the adverse events were those described in the literature with no change in the pharmacological attitude(AU)

Efficacy of combined local flaps in repair of larger defects in the nasal and perinasal region after Mohs micrographic surgery in 11 cases / 中华皮肤科杂志

Objective:To investigate efficacy and advantages of combined local flaps in repairing large defects in patients with nasal and perinasal non-melanoma skin cancers after Mohs micrographic surgery.Methods:From March 2018 to November 2020, 11 patients with nasal and perinasal non-melanoma skin cancers, who underwent Mohs micrographic surgery followed by repair with combined local flaps, were collected from Department of Dermatology, the Second Hospital of Hebei Medical University. According to the location and size of postoperative defects, flaps were designed based on the nasal aesthetic subunit principle. For large defects that could not be directly sutured or covered by a single local flap, 2 or 3 kinds of flaps were applied in combination, such as kite flap, modified diamond flap, nasolabial skin flap, bilobed skin flap, etc.Results:Among the 11 patients, 10 were diagnosed with basal cell carcinoma and 1 with squamous cell carcinoma, and the area of defects ranged from 2.0 cm × 2.3 cm to 2.7 cm × 3.6 cm. After Mohs micrographic surgery combined with local skin flap repair, all skin flaps survived well without blood supply obstruction, the texture, color and contour of the skin flaps were similar to those of the surrounding normal skin, and no obvious scars were formed. During the postoperative follow-up of 4 to 32 months, no recurrence of the tumors occurred, and the patients was satisfied with the appearance.Conclusion:To repair large defects using combined skin flaps of 2 or 3 kinds after Mohs micrographic surgery in patients with nasal and perinasal non-melanoma skin cancers can maintain the normal nasal or perinasal morphological structure and aesthetic appearance, and yield a satisfactory cosmetic effect.

Comparación histopatológica entre biopsia preoperatoria y debulking luego de la cirugía micrográfica de Mohs en carcinomas cutáneos / Histopathological comparison between preoperative biopsy and debulking after Mohs micrographic surgery in cutaneous carcinomas / Comparação histopatológica entre biópsia pré-operatória e citorredução após cirurgia micrográfica de Mohs em carcinomas cutâneos

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.

Recidiva y factores de riesgo asociados luego de la cirugía micrográfica de Mohs en el Centro Universitario de referencia nacional en Uruguay / Relapse and associated risk factors after Mohs micrographic surgery at the Uruguayan national reference University Center

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.

HeberFERON en el carcinoma basocelular periocular. Serie de casos / HeberFERON in periocular basal cell carcinoma. Case series

RESUMEN Fundamento: El carcinoma basocelular periocular es una lesión tumoral que surge de las células basales de la epidermis y los folículos pilosos, con un alto potencial de destrucción local, pueden ser desfigurantes e invaden el tejido que los rodea dando lugar a deformidades o pérdida de la función del órgano afectado. En orden de aparición es más común en el párpado inferior, el canto medial, el párpado superior y el canto temporal. Objetivo: Describir los resultados de la aplicación del HeberFERON en una serie de casos con carcinoma basocelular periocular que acudieron a consulta de dermatología del Policlínico Centro, de enero de 2017 a diciembre del 2020. Metodología: Se realizó un estudio de serie de casos clínicos con carcinoma basocelular periocular que acudieron a la consulta de dermatología del Policlínico Centro. Se incluyeron 17 casos con diagnóstico clínico, dermatoscópico e histopatológico. Se realizó una evaluación inicial, durante y 16 semanas después del tratamiento; se administró 10.5 UI de HeberFERON 3 veces por semana perilesional e intradérmica hasta completar 9 dosis. Las variables principales fueron la respuesta al tratamiento y la presencia o no de eventos adversos. Resultados: Predominó el sexo masculino, el fototipocutáneo II, la localización en párpado inferior, el subtipo clínico nódulo ulcerativo y el histológico sólido, se logró respuesta completa en la mayoría de los pacientes. Como eventos adversos se presentaron dolor en el sitio de inyección, fiebre, mal estar general, edema y eritema perilesional. Conclusiones: La respuesta al tratamiento fue favorable en la mayoría de los pacientes tratados con HeberFERON.

ABSTRACT Background: Periocular basal cell carcinoma is a tumor lesion arising from the epidermis and hair follicles basal cells, with a high potential local destruction, can be disfiguring and invade the surrounding tissue leading to deformities or loss of function of the affected organ. In order of appearance it is most common in the lower eyelid, medial edge, upper eyelid and temporal edge. Objective: To describe the results of the application of HeberFERON in a case series with periocular basal cell carcinoma who attended dermatology appointment at the Policlínico Centro, from January 2017 to December 2020. Methodology: A series study of clinical cases with periocular basal cell carcinoma who attended the dermatology appointment at the Policlínico Centro was conducted. 17 cases with clinical, dermatoscopic and histopathological diagnosis were included. A baseline evaluation was conducted, during and 16 weeks after treatment; 10.5 IU of HeberFERON was administered 3 times a week perilesional and intradermally until completing 9 doses. The main variables were the treatment response and the presence or absence of adverse events. Results: Male sex, phototypocutaneous II, lower eyelid location, clinical subtype ulcerative nodule and solid histological subtype predominated, complete response was achieved in most patients. Adverse events were pain at the injection site, fever, general malaise, edema and perilesional erythema. Conclusions: Treatment response was favorable in most patients treated with HeberFERON.

Incidencia y mortalidad del cáncer de piel no melanoma en Guayaquil / Incidence and mortality of nonmelanoma skin cancer in Guayaquil

El cáncer de piel viene incrementándose en los últimos años en el Ecuador, a tal punto que se ha convertido en un problema de salud pública. Determinar incidencia y mortalidad del cáncer de piel no melanoma en la ciudad de Guayaquil. Estudio observacional, de diseño de investigación tipo corte transversal. Lugar: cantón Guayaquil, período 2011 a 2015. Los sujetos fueron los pacientes con cáncer de piel no melanoma. Aplicando estadísticas descriptivas con indicadores de tasas y comparación entre variables. Este cáncer en ambos sexos presenta su incidencia en el año 2011 una tasa de 22,26, 2013 con 32,40, 2015 con 30,05 casos por 100.000 habitantes, y la mortalidad en el año 2011 una tasa de 0,77, 2013 con 0,79 y 2015 con 0,77 por 100.000 habitantes. Las mayores tasas de incidencia y mortalidad, en ambos sexos, se obtuvieron mayormente en el grupo de 75 y más años de edad, con tasa de incidencia de 422,7 y tasa de mortalidad de 8,14, seguido del por grupo etario de 60 a 74 años en ambos sexos con tasa de incidencia de 165,67 y de mortalidad de 1,02 por 100.000 habitantes. Conclusiones. El cáncer de piel no melanoma en Guayaquil, en este quinquenio se presentó mayormente en edades de 75 y más años para ambos sexos, observándose su incremento en los últimos años, aunque su mortalidad sea muy baja, se evidencia un problema de relevancia en salud pública.

Skin cancer has been increasing in Ecuador in recent years, to the point that it has become a public health problem today. Determine incidence and mortality of non-melanoma skin cancer in the city of Guayaquil. Observational study, cross-sectional type research design. Place: Guayaquil canton, period 2011 to 2015. The subjects were patients with non-melanoma skin cancer. Applying descriptive statistics with rate indicators and comparison between variables. This cancer in both sexes has in 2011 an incidence rate of 22.26, 2013 with 32.40, 2015 with 30.05 cases per 100 000 inhabitants; and the mortality rate in 2011 of 0.77, 2013 0.79 and 2015 with 0.77 per 100,000 inhabitants. The major Incidence and mortality rates by age group in both sexs were obtained mainly in the age group 75 and over, with an incidence rate of 422.7 and mortality rateo f 8.14, followed by age group 60-74 years in both sexs with incidence rateo f 165.67 and mortality rate of 1.02. In Guayaquil the non-melanoma skin cancer, in this period mostly presented in the age groups over 75 years of age for both sexes, which has been increasing in recent years, although its mortality is very low, shows a problem of relevance in public health.

Basal Cell Carcinoma in the Department of Dermatology, Hospital Kuala Lumpur

@#Basal cell carcinoma (BCC) is the commonest skin cancer seen worldwide. This study aims to determine the clinical pattern of BCC in the Department of Dermatology, Hospital Kuala Lumpur, Malaysia

Carcinoma basocelular del rostro tratado con HeberFERON / Basal cell carcinoma of the face treated with HeberFERON

RESUMEN Fundamento: El carcinoma basocelular es el cáncer de piel no melanoma más frecuente, es un tumor de invasión local y crecimiento lento; su origen son las células epidérmicas de los folículos pilosos o las células basales de la epidermis; en ocasiones puede sufrir un crecimiento incontrolado, no responder a los tratamientos y ser causa de deformidad; las radiaciones ultravioletas son el principal factor en la génesis de esta enfermedad. Objetivo: Describir los resultados de la aplicación de HeberFERON en una serie de casos con carcinoma basocelular del rostro. Metodología: Se realizó un estudio observacional, descriptivo longitudinal en una serie de 32 casos clínicos de carcinoma basocelular del rostro que acudieron a la consulta de dermatología del Policlínico Centro. Se incluyeron aquellos con diagnóstico clínico, dermatoscópico e histopatológico. Se realizó una evaluación inicial, durante el tratamiento y 16 semanas después del mismo, se le administró 10.5 UI de HeberFERON 3 veces por semana hasta completar 9 dosis. Las variables fueron la respuesta al tratamiento y presencia o no de eventos adversos. Resultados: Predominó el sexo masculino, la piel blanca y la localización de la neoplasia en la nariz, se logró respuesta completa en la mayoría de los pacientes. Como eventos adversos se presentaron dolor en el sitio de inyección, fiebre y malestar general. Conclusiones: La respuesta objetiva al tratamiento fue favorable en la mayoría de los pacientes tratados con HeberFERON.

ABSTRACT Background: Basal cell carcinoma is the most frequent non-melanoma skin cancer, it is a tumor of local invasion and slow growth; it has its origin from the epidermal cells of the hair follicles or the basal cells of the epidermis; sometimes it can suffer uncontrolled growth, not respond to treatments and cause deformity; ultraviolet radiation is the main factor in the genesis of this disease. Objective: To describe the results of the application of HeberFERON in a series of cases with basal cell carcinoma of the face. Methodology: An observational, longitudinal descriptive study was carried out in a series of 32 clinical cases of basal cell carcinoma of the face that attended the dermatology office of the Polyclinic Center. Those with clinical, dermatoscopic and histopathological diagnosis were included. An initial evaluation was carried out, during the treatment and 16 weeks after it, 10.5 IU of HeberFERON was administered 3 times per week until 9 doses were completed. The variables were the response to treatment and the presence or absence of adverse events. Results: Male sex, white skin and the location of the neoplasm in the nose predominated; a complete response was achieved in most patients. Adverse events presented pain at the injection site, fever and malaise. Conclusions: The objective response to treatment was favorable in the majority of patients treated with HeberFERON.

Caracterización clinicoepidemiológica de pacientes con tumores epiteliales cutáneos no melanoma / Clinical and epidemiological characterization of patients with epithelial cutaneous non melanoma tumors

Se realizó un estudio descriptivo, retrospectivo y transversal de 87 pacientes con tumores cutáneos no melanoma, atendidos en el Servicio de Dermatología del Hospital Clinicoquirúrgico Docente Dr Joaquín Castillo Duany de Santiago de Cuba, desde enero de 2012 hasta igual mes de 2014 con el objetivo de caracterizarles según variables clínicas y epidemiológicas de interés para la investigación. La información se recogió de las historias clínicas y de los informes de anatomía patológica. Como medidas de resumen para variables cuantitativas y cualitativas se utilizaron la media, la frecuencia absoluta y la relativa. En la serie predominaron el carcinoma basocelular (60,0 por ciento), el sexo masculino, los pacientes de piel blanca y los mayores de 50 años de edad; asimismo, la cabeza resultó ser la región topográfica más afectada y la forma clínica nodular la más frecuente. Según la ocupación, los agricultores y los albañiles estuvieron mayormente relacionados con este tipo de cáncer de piel.

A descriptive, retrospective and cross-sectional study of 87 patients with non melanoma cutaneous tumors, assisted in the Dermatology Service of Dr Joaquín Castillo Duany Clinical Surgical Hospital in Santiago de Cuba was carried out from January, 2012 to the same month of 2014 with the objective of characterizing them according to clinical and epidemiological variables of interest for the investigation. The information was collected from the medical records and from the pathology reports. For quantitative and qualitative variables, means, absolute frequency and the relative frequency were used as summary measures. In the series, the basocelular carcinoma (60,0 percent), male sex, the white skin patients and those older than 50 years prevailed; also, the head turned to be the most affected topographical region and the most frequent nodular clinical type. According to the occupation, farmers and bricklayers were mostly related to this type of skin cancer.

Carcinoma sebáceo extraocular, reporte de un caso / Extraocular sebaceous carcinoma, case report

RESUMEN El carcinoma sebáceo es una neoplasia anexial poco común que puede originarse en cualquier lugar del cuerpo donde existan glándulas sebáceas, siendo la principal ubicación la cabeza y el cuello, existiendo la presentación ocular y extraocular. Alcanza entre 0,2% a 4,6% de todas las neoplasias cutáneas malignas, con mayor incidencia en los adultos mayores caucásicos. La presentación clínica habitual corresponde a un nódulo duro o quístico subcutáneo eritematoso o amarillento, indoloro, de crecimiento acelerado. Sin embargo, puede manifestarse como una amplia gama de lesiones cutáneas, lo que, agregado a su baja incidencia, sea altamente subdiagnosticado. Se presenta el caso de un paciente de 64 años con tumor exofítico malar izquierdo con ulceraciones y áreas de necrosis en la superficie, sin compromiso de párpado inferior, de agudeza visual ni motilidad ocular. Se realiza resección del tumor, cuya biopsia definitiva confirma diagnóstico de carcinoma sebáceo extraocular.

ABSTRACT Sebaceous carcinoma is a rare anexal neoplasm that can develop on any part of the body containing sebaceous glands, but nearly the 70% of sebaceous carcinoma occur on the head and neck, being two ways of presentation, ocular and extraocular. It represents 0.2-4.6 % of all malignant neoplastic cutaneous lesions, whit a peak incidence in the eighth decades of life, in caucasian people. Typical clinical presentation of sebaceous carcinoma is a painless, firm or cystic subcutaneous nodule described as pink to red-yellow, however clinical features can be quite varied, which added to its low incidence leads to the diagnosis is often delayed for months to years. We present the case of a 64 years old patient whit an exofitic malar tumor ulcerated and necrotic in the surface, without compromising the lower eyelid, vision or ocular mobility. The biopsy of the tumor resection shows an extraocular sebaceous carcinoma.

Risk of Second Primary Cancer in People with Non-melanoma Skin Cancer: A Nationwide Cohort Study / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: Previous western studies have found Caucasians with skin cancer, either melanoma or nonmelanoma skin cancer (NMSC), have an elevated risk of second primary cancer. Our objective was to assess the risk of second primary cancer in Taiwanese with NMSC. MATERIALS AND METHODS: By using data from Taiwan's National Health Insurance Research Database, we conducted a population-based cohort study to assess the risk of incident second primary cancer in Taiwanese affected by NMSC. RESULTS: We identified 505 subjects with NMSC and 2,020 matched controls. After adjustment for potential confounders including age, sex, urbanization, and Charlson Comorbidity Index, people who had NMSC had a 1.43-fold (95% confidence interval [CI], 1.05 to 1.96) risk for the development of second primary cancer as comparedwith control group. Menwith NMSC had a 2.99-fold (95% CI, 1.00 to 9.10) risk for second primary cancer involving the lip, oral cavity, and pharynx and a 3.51-fold (95% CI, 1.21 to 10.17) risk for second primary cancer involving the genitourinary organs when compared to the control group. By contrast, women with NMSC did not have an increased risk of second primary cancer. CONCLUSION: This study revealed Asians with NMSC have an increased risk of second primary cancer. Our findings can be a useful reference for health care for people diagnosed with NMSC.

Características epidemiológicas del cáncer de piel no melanoma en militares, 2015-2016: Perú / Epidemiological characteristics of skin cancer no melanoma in military, 2015-2016: Peru

El carcinoma de piel no melanoma (CPNM) es una de las neoplasias más frecuentes en el mundo, su incidencia está en aumento. Una de las principales causas del carcinoma de piel no melanoma es la exposición repetida y prolongada al sol; los militares realizan sus actividades al aire libre, están muy expuestos a sufrir la enfermedad. Objetivos: conocer las características epidemiológicas del cáncer de piel no melanoma en el personal militar. Material y Métodos: se realizó un estudio descriptivo, retrospectivo y transversal de diseño no experimental. Se incluyeron 163 pacientes atendidos en un Hospital Militar, con diagnóstico clínico e histopatológico de CPNM entre los años 2015 y 2016. Se incluyó al Carcinoma Basocelular (CBC) y al Carcinoma Espinocelular (CEC); se analizaron variables como: la edad, sexo, raza, formas clínicas e histológicas y ubicación anatómica de las lesiones. Resultados: el CBC fue el CPNM predominante, sexo masculino (60%) y raza mestiza (87,7%) fueron los más afectados. Edad media de presentación 75,16 años. El CBC nodular fue la forma clínica más frecuente (70,97%) de los CBC y el tipo invasivo de los CEC (76,92%). Los tipos histológicos más comunes CBC sólido (49,19%) y el CEC bien diferenciado (46,15%); ubicación anatómica más frecuentemente afectada por el CPNM, cabeza (79,8%) y tronco (9,2%). Conclusiones: el carcinoma de piel no melanoma de mayor frecuencia en el personal militar es el carcinoma basocelular, siendo la forma clínica nodular la de mayor frecuencia.

Non-melanoma skin carcinoma (NSCLC) is one of the most common neoplasms in the world, and its incidence is increasing. One of the major causes of non-melanoma skin carcinoma is repeated and prolonged exposure to the sun; the military perform their activities outdoors, are very exposed to suffering the disease. Objectives: to know the epidemiological characteristics of non-melanoma skin cancer in military personnel. Material and Methods: a descriptive, retrospective and cross-sectional study of a non-experimental design was performed. We included 163 patients attended at a Military Hospital with clinical and histopathological diagnosis of NMSC between the years 2015 and 2016. We included Basal Cell Carcinoma (CBC) and Spinocellular Carcinoma (CPB), we analyzed variables: age, sex, race, clinical forms and histological and anatomical locations Results: BCB was the predominant neoplasm, male (60%) and mestizo (87,7%) were the most affected. Average age of presentation 75,16 years. The nodular BBC was the most frequent clinical form (70,97%) of SCC and the invasive type of CPB (76,92%). The most common histological types Solid Basal Cell Carcinoma (49,19%) and well differentiated squamous cell carcinoma (46,15%); anatomical location most frequently affected by NSCLC, head (79,8%) and trunk (9,2%). Conclusions: the most frequent non-melanoma skin carcinoma in military personnel is basal cell carcinoma, with the most frequent nodular clinical form.

Fatores associados à ressecção incompleta do câncer não melanoma / Factors associated with incomplete resection of non-melanoma cancer

Introdução: Analisar fatores associados e taxa de positividade de margem cirúrgica após ressecção primária de Câncer de Pele Não Melanoma (CNM). Métodos: Estudo transversal, quantitativo, realizado mediante a revisão de prontuários de pacientes submetidos à ressecção cirúrgica de carcinoma basocelular (CBC) e espinocelular (CEC) de pele. Foram estudadas as seguintes variáveis: idade, tipo de câncer, localização, diâmetro, variante histológica, presença de ulceração, presença e ressecção de lesões associadas e presença de comprometimento de margens cirúrgicas. Resultados: Foram inclusos 183 paciente no estudo. Destes, 130 eram CBC (71%) e 53 eram CEC (29%). A taxa global de comprometimento de margem foi de 13,1%, sendo 21 CBC (16%) e 3 CEC (5,66%). Margens cirúrgicas positivas estiveram mais associadas a lesões do tipo CBC (p<0,05) e em lesões localizadas em nariz e pálpebra (p<0,05). Presença de ulceração, diâmetro das lesões e variante histológica não foram associadas a uma maior taxa de ressecções incompletas. Conclusão: Nossa taxa global de ressecção incompleta de Câncer de Pele (CNM) apresenta-se semelhante ao encontrado na literatura. Lesões por CBC ou localizadas em nariz e pálpebra têm maiores taxas de positividade de margem após ressecção primária (AU)

Introduction: To analyze associated factors and surgical margin positivity rate after primary resection of Non-Melanoma Skin Cancer (NMC). Methods: A cross-sectional, quantitative study was carried out by reviewing medical records of patients submitted to surgical resection of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) of the skin. The following variables were studied: age, type of cancer, location, diameter, histological variant, presence of ulceration, presence and resection of associated lesions, and presence of surgical margins involvement. Results: 183 patients were included in the study. Of these, 130 were BCC (71%) and 53 were SCC (29%). The overall rate of margin involvement was 13.1%, of which 21 were CBC (16%) and 3 SCC (5.66%). Positive surgical margins were more associated with BCC lesions (p <0.05) and lesions located in the nose and eyelid (p <0.05). Presence of ulceration, lesion diameter and histological variant were not associated with a higher rate of incomplete resections. Conclusion: Our overall rate of incomplete resection of Skin Cancer is similar to that found in the literature. Lesions by BCC or located in the nose and eyelid have higher rates of margin positivity after primary resection (AU)

Low-dose systemic retinoids in preventing subsequent non-melanoma skin cancers (NMSC) in patients with history of NMSC: A systematic review

BACKGROUND: Non-melanoma skin cancers (NMSC) consists of  basal-cell carcinomas (BCC) and squamous-cell carcinomas (SCC).Certain populations are predisposed to develop  NMSC,  including  patients  with  previous  history  of  NMSC.Systemic  retinoids  have  shown  promising  results  in chemoprevention of recurrence of NMSC in other high-risk populations (xeroderma pigmentosum and renal-transplant patients).We  assessed  the  efficacy  and  safety  of  low-dose  systemic  retinoids  compared  with  placebo,  as  a  chemopreventive agent for NMSC in patients with previous NMSC.METHODOLOGY: Electronic  databases  were  systematically searched for this study. Participants in the studies selected must have had a biopsy-proven NMSC, over 18 years of age, with  no  exclusion  of  other  demographic  characteristics. All  types  of  systemic  retinoids  were  included  with  no restriction on dosage. Two authors independently performed standardized  eligibility  assessment  and  data-extraction.Differences in opinion were resolved by consensus with the third author. Statistical analysis was done using the Review Manager 5 software.RESULTS: Eleven full-text studies were assessed for eligibility out of 178 studies found. Five studies were excluded because of the different population, while the two articles used topical retinoids. Four articles were included. The interventions were 10.0 mg isotretinoin, 25,000IU retinol and 25.0 mg acitretin,compared with placebo. Meta-analysis produced RR of 0.94 (95% CI, 0.89-1.00), with moderate heterogeneity (34%) due to the difference in interventions used. There are significantly more  adverse  events  in  the  retinoids  group,  especially  in the  incidence  of  mucocutaneous  adverse  events,  and deranged lipid profile and liver enzymes.CONCLUSION: There is insufficient evidence to support the use of low-dose systemic retinoids as chemoprevention for patients with previous NMSC. Furthermore, adverse events may limit their use. Topical preparations with less side-effects may be investigated.

Repair and treatment with local skin flap after primary surgical resection of non melanoma skin cancer / 局解手术学杂志

Objective To investigate the clinical effect of treatment with local skin flap after primary surgical resection of non melanoma skin cancer.Methods A total of 176 patients with head and facial skin cancer who were admitted into our hospital from September 2008 to September 2015 were divided into three groups according to different repair plans.Namely,the suture group (41 cases),the local skin flap group (81 cases) and the skin graft group (54 cases).The repair effect of the three groups were compared after the operation.Results The good rate was 68.39%(28/41) in the suture group,98.77%(80/81) in the local skin flap group,and 83.33%(45/54) in the skin graft group,and it was significantly higher than any of the other two groups with statistically significant difference(P0.05).The 3 groups were followed up for a period of 1 year,as a result,there was no recurrence and distant metastasis.Conclusion For patients with head and facial non melanoma skin cancer,repaired with local skin flap healing treatment after primary surgical resection can not only get high healing rate but also significant improvement of patient satisfaction rate.In addition,it can lower the rate of recurrence and distant metastasis after operation.

Low-dose systemic retinoids in preventing subsequent non-melanoma skin cancers (NMSC) in patients with history of NMSC: A systematic review

@#<p style="text-align: justify;"><strong>BACKGROUND:</strong> Non-melanoma skin cancers (NMSC) consists of  basal-cell carcinomas (BCC) and squamous-cell carcinomas (SCC).Certain populations are predisposed to develop  NMSC,  including  patients  with  previous  history  of  NMSC.Systemic  retinoids  have  shown  promising  results  in chemoprevention of recurrence of NMSC in other high-risk populations (xeroderma pigmentosum and renal-transplant patients).We  assessed  the  efficacy  and  safety  of  low-dose  systemic  retinoids  compared  with  placebo,  as  a  chemopreventive agent for NMSC in patients with previous NMSC.<br /><strong>METHODOLOGY:</strong> Electronic  databases  were  systematically searched for this study. Participants in the studies selected must have had a biopsy-proven NMSC, over 18 years of age, with  no  exclusion  of  other  demographic  characteristics. All  types  of  systemic  retinoids  were  included  with  no restriction on dosage. Two authors independently performed standardized  eligibility  assessment  and  data-extraction.Differences in opinion were resolved by consensus with the third author. Statistical analysis was done using the Review Manager 5 software.<br /><strong>RESULTS:</strong> Eleven full-text studies were assessed for eligibility out of 178 studies found. Five studies were excluded because of the different population, while the two articles used topical retinoids. Four articles were included. The interventions were 10.0 mg isotretinoin, 25,000IU retinol and 25.0 mg acitretin,compared with placebo. Meta-analysis produced RR of 0.94 (95% CI, 0.89-1.00), with moderate heterogeneity (34%) due to the difference in interventions used. There are significantly more  adverse  events  in  the  retinoids  group,  especially  in the  incidence  of  mucocutaneous  adverse  events,  and deranged lipid profile and liver enzymes.<br /><strong>CONCLUSION:</strong> There is insufficient evidence to support the use of low-dose systemic retinoids as chemoprevention for patients with previous NMSC. Furthermore, adverse events may limit their use. Topical preparations with less side-effects may be investigated.</p>

Low-dose systemic retinoids in preventing subsequent non-melanoma skin cancers (NMSC) in patients with history of NMSC: A systematic review

BACKGROUND: Non-melanoma skin cancers (NMSC) consists of  basal-cell carcinomas (BCC) and squamous-cell carcinomas (SCC).Certain populations are predisposed to develop  NMSC,  including  patients  with  previous  history  of  NMSC.Systemic  retinoids  have  shown  promising  results  in chemoprevention of recurrence of NMSC in other high-risk populations (xeroderma pigmentosum and renal-transplant patients).We  assessed  the  efficacy  and  safety  of  low-dose  systemic  retinoids  compared  with  placebo,  as  a  chemopreventive agent for NMSC in patients with previous NMSC.METHODOLOGY: Electronic  databases  were  systematically searched for this study. Participants in the studies selected must have had a biopsy-proven NMSC, over 18 years of age, with  no  exclusion  of  other  demographic  characteristics. All  types  of  systemic  retinoids  were  included  with  no restriction on dosage. Two authors independently performed standardized  eligibility  assessment  and  data-extraction.Differences in opinion were resolved by consensus with the third author. Statistical analysis was done using the Review Manager 5 software.RESULTS: Eleven full-text studies were assessed for eligibility out of 178 studies found. Five studies were excluded because of the different population, while the two articles used topical retinoids. Four articles were included. The interventions were 10.0 mg isotretinoin, 25,000IU retinol and 25.0 mg acitretin,compared with placebo. Meta-analysis produced RR of 0.94 (95% CI, 0.89-1.00), with moderate heterogeneity (34%) due to the difference in interventions used. There are significantly more  adverse  events  in  the  retinoids  group,  especially  in the  incidence  of  mucocutaneous  adverse  events,  and deranged lipid profile and liver enzymes.CONCLUSION: There is insufficient evidence to support the use of low-dose systemic retinoids as chemoprevention for patients with previous NMSC. Furthermore, adverse events may limit their use. Topical preparations with less side-effects may be investigated.

Distribution of Facial Exposure to Non-melanoma Biologically Effective UV Irradiance Changes by Rotation Angles / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>To show the distribution of facial exposure to non-melanoma biologically effective UV irradiance changes by rotation angles.</p><p><b>METHODS</b>This study selected the cheek, nose, and forehead as representative facial sites for UV irradiance measurements, which were performed using a rotating manikin and a spectroradiometer. The measured UV irradiance was weighted using action spectra to calculate the biologically effective UV irradiances that cause non-melanoma (UVBEnon-mel) skin cancer. The biologically effective UV radiant exposure (HBEnon-mel) was calculated by summing the UVBEnon-mel data collected over the exposure period.</p><p><b>RESULTS</b>This study revealed the following: (1) the maximum cheek, nose and forehead exposure UVA and UVB irradiance times and solar elevation angles (SEA) differed from those of the ambient UV irradiance and were influenced by the rotation angles; (2) the UV irradiance exposure increased in the following order: cheek < nose < forehead; (3) the distribution of UVBEnon-mel irradiance differed from that of unweighted UV radiation (UVR) and was influenced by the rotation angles and exposure times; and (4) the maximum percentage decreases in the UVBEnon-mel radiant exposure for the cheek, nose and forehead from 0°to 180°were 48.41%, 69.48% and 71.71%, respectively.</p><p><b>CONCLUSION</b>Rotation angles relative to the sun influence the face's exposure to non-melanoma biologically effective UV.</p>