Results: 281

Carcinoma sebáceo extraocular, reporte de un caso

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 neoplasi...

Study of skin neoplasms in a university hospital: integration of anatomopathological records and its interface with the literature

An. bras. dermatol; 94 (1), 2019
Abstract: Background: Skin cancer is a highly prevalent condition with a multifactorial etiology resulting from genetic alterations, environmental and lifestyle factors. In Brazil, among all malignant tumors, skin cancers have the highest incidences. Objective: To retrospectively evaluate the incidence...

Patterns of proliferation and apoptosis in different subtypes of basal cell carcinoma, adjacent epidermis, and recurrent forms

An. bras. dermatol; 94 (1), 2019

Amelanotic acral melanoma misdiagnosed as verruca plantaris

An. bras. dermatol; 94 (1), 2019
Abstract: We report a case of amelanotic acral melanoma in a 42-year-old Chinese woman. Ten months previously the patient found a 2-cm asymmetric erythematous macular plaque on her left sole. The lesion was diagnosed as verruca plantaris by every physician the patient consulted. One month ago, an enlarge...

Case for diagnosis. Primary cutaneous CD4+ small/medium T-cell lymphoproliferative disorder

An. bras. dermatol; 94 (1), 2019
Abstract: Primary cutaneous CD4+ small/medium T-cell lymphoproliferative disorder is a rare disease, with an indolent evolution and benign course. The classic presentation is a solitary nodule on the face or trunk. The disorder's rarity and clinical and histopathological characteristics, can make the dia...

Association between tumor-infiltrating lymphocytes and sentinel lymph node positivity in thin melanoma

An. bras. dermatol; 94 (1), 2019
Abstract: Background: Sentinel lymph node biopsy in thin invasive primary cutaneous melanoma (up to 1mm thick) is a controversial subject. The presence of tumor-infiltrating lymphocytes could be a factor to be considered in the decision to perform this procedure. Objective: To evaluate the association ...

Desmoplastic melanoma: a rare variant with challenging diagnosis

An. bras. dermatol; 94 (1), 2019
Abstract: Desmoplastic melanoma, a distinct and uncommon variant, is characterized as an invasive lesion with proliferation of fusiform melanocytes in the dermis and subcutaneous tissue, associated with varying patterns of desmoplasia. Neurotropism and neural differentiation may occur. The clinical prese...

Tabaquismo y cáncer de piel no melanoma

The incidence of non melanoma skin cancer, squamous cell carcinoma (SCC) y basal cell carcinoma (BCC) is constantly rising all over the world. Ultraviolet (UV) radiation exposure is an established environment risk for SCC and BCC, others risk factors such as skin type, age, chemical exposure and the pres...

Neoplasias melanocíticas spitzoides: estudio clínico-histopatológico de 62 lesiones en un hospital universitario chileno

Rev. chil. dermatol; 35 (4), 2019
INTRODUCCIÓN: Las neoplasias spitzoides son tumores melanocíticos con un espectro biológico variable, que constituyen un desafío diagnóstico. Los estudios en población latinoamericana son muy escasos, no contando con series chilenas. OBJETIVO: Caracterizar clínica e histopatológicamente a los pac...

Epidemiología del melanoma en poblacion de la provincia de Osorno: estudio retrospectivo 2016 - 2018

Rev. chil. dermatol; 35 (4), 2019
El melanoma maligno ha aumentado su incidencia. En la provincia de Osorno, para el período 2016 – 2018, se registraron 55 casos nuevos de melanoma, con predominio en sexo femenino. Los subtipos extensivo superficial y nodular fueron los más frecuentes; no obstante el lentiginoso acral fue un ...