Results: 732

Carcinoma de células de Merkel: apresentação clínica, dermatoscópica e imuno-histoquímica de um tumor raro

Carcinoma de células de Merkel é tumor cutâneo neuroendócrino raro e altamente agressivo. Objetiva-se neste artigo alertar para a possibilidade desse diagnóstico, geralmente não considerado hipótese inicial em neoplasias cutâneas. Relatamos dois casos de pacientes do sexo feminino, idosas com que...

Dermatofibroma simulating seborrheic keratosis dermoscopically

An. bras. dermatol; 91 (3), 2016
Abstract: Dermatofibroma is a frequent benign tumor of easy clinical diagnosis in most cases, but that can mimic other dermatoses. Dermoscopy may help to define the diagnosis and its classical pattern is a central white area, similar to a scar, surrounded by a discrete pigment network. However, dermoscop...

Methotrexate and etanercept-induced primary cutaneous CD4 positive small/medium-sized pleomorphic T-cell lymphoma

An. bras. dermatol; 91 (3), 2016
Abstract: Immunosuppressive drugs and biological agents may represent a potential risk of lymphoma development in patients with rheumatoid arthritis. But most cases are diffuse, large B-cell lymphomas. Primary cutaneous CD4+ small/medium-sized pleomorphic T-cell lymphoma, a provisional entity in the 2005...

Extramedullary plasmacytoma in a captive collared peccary (Pecari tajacu)

Pesqui. vet. bras; 36 (6), 2016
An extramedullary plasmacytoma case in a captive collared peccary (Pecari tajacu) is reported. The animal, a female aging three years old, had a medical history of diffusely distributed skin and mucocutaneous junction lesions, associated with swollen lymph nodes. Clinical examination and complementary ex...

Human herpesvirus 8 (HHV-8) detected by nested polymerase chain reaction (PCR) in HIV patients with or without Kaposi's sarcoma. An analytic cross-sectional study

Säo Paulo med. j; 134 (3), 2016
CONTEXT AND OBJECTIVE: Kaposi's sarcoma (KS) is a common neoplastic disease in AIDS patients. The aim of this study was to evaluate the frequency of human herpesvirus 8 (HHV-8) infection in human immunodeficiency virus (HIV)-infected patients, with or without KS manifestations and correlate HHV-8 detect...

High frequency ultrasound with color Doppler in dermatology

An. bras. dermatol; 91 (3), 2016
Abstract: Ultrasonography is a method of imaging that classically is used in dermatology to study changes in the hypoderma, as nodules and infectious and inflammatory processes. The introduction of high frequency and resolution equipments enabled the observation of superficial structures, allowing differ...

Occupational skin cancer: Systematic review

SUMMARY Objective: To analyze the epidemiological profile, risk factors in the workplace environment and prevention methods for professionals at risk of skin cancer. Method: A systematic review of articles on occupational skin cancer, published in the Lilacs, Scielo, Medline and Cochrane Library from J...

Syndrome in question

An. bras. dermatol; 91 (2), 2016
Abstract Neurofibromatosis is extremely variable in its presentation. Segmental neurofibromatosis (SNF), which corresponds to NF-type 5 in the Riccardi classification, is a rare disorder. It may go unrecognized if few lesions are observed. We present a case of segmental neurofibromatosis in a 28 year-old...

Multifocal primary cutaneous extranodal NK/T lymphoma nasal type

An. bras. dermatol; 91 (2), 2016
Abstract Nasal type extranodal NK/T-cell lymphoma is a distinct entity according to the World Health Organization classification. Although 60% to 90% of patients with this disease present with a destructive mass in the midline facial tissues, it may also primarily or secondarily involve extranasal sites,...