Update on parasitic dermatoses

Abstract These are cutaneous diseases caused by insects, worms, protozoa, or coelenterates which may or may not have a parasitic life. In this review the main ethological agents, clinical aspects, laboratory exams, and treatments of these dermatological diseases will be studied.

An unusual variant of atrophic dermatofibrosarcoma protuberans

Abstract: Dermatofibrosarcoma protuberans is an uncommon neoplasm that is most often seen in young adults. The most common clinical presentation is the protruding form; however, other subtypes are known, such as the atrophic. In 2012 there were only 33 reports of this variant in the literature. Many cases of Dermatofibrosarcoma protuberans in children are only discovered in adulthood because they were not diagnosed early. Due the high morbidity, we raise the need for attention from the dermatologist to recognize uncommon neoplasms in the clinical practice. We report a case of a 15-year-old patient diagnosed with atrophic Dermatofibrosarcoma protuberans on the back.

Syringocystadenoma papilliferum combined with a tubular apocrine adenoma

Abstract: Syringocystadenoma papilliferum and tubular apocrine adenoma are rare benign sweat gland tumors. Syringocystadenoma papilliferum occurs alone or in association with other tumors. Although it is rare, the association of tubular apocrine adenoma with syringocystadenoma papilliferum developing in a sebaceous nevus on the scalp is well documented. However, the co-existence of these two tumors without the background of a sebaceous nevus has not been frequently reported. Syringocystadenoma papilliferum and tubular apocrine adenoma may have a histopathological overlap, but a few cases of a syringocystadenoma papilliferum combined with a tubular apocrine adenoma have been reported. Herein we describe an unusual case of syringocystadenoma papilliferum co-existing with a tubular apocrine adenoma located on the back of a 14-year-old patient in the absence of a pre-existing sebaceous nevus.

Ectopic cutaneous schistosomiasis - Case report / Esquistossomose cutanea ectopica - Relato de caso

Schistosomiasis mansoni is a systemic disease caused by a helminth of the schistosoma genus. The disease is generally asymptomatic or gastrointestinal symptoms may predominate. Skin lesions related to the disease are rarely diagnosed, even in endemic areas. The authors report the case of a young girl diagnosed with cutaneous schistosomiasis with involvement of the abdomen, back and scapular region. Schistosoma eggs were found in the lesions by histopathologic exam. There was no evidence of systemic involvement. Schistosomiasis must be included in the list of differential diagnosis of skin damage, especially in endemic areas, due to the potential consequences, in case of late diagnosis and treatment.

A esquistossomose mansônica é uma doença sistêmica causada por um helminto do gênero Schistosoma, geralmente assintomática ou com predomínio de manifestações gastrointestinais. Lesões cutâneas relacionadas à doença são raramente diagnosticadas, mesmo em áreas endêmicas. Relata-se um caso de uma jovem com história de lesões papulosas no abdome, no dorso e na região escapular direita, de distribuição zosteriforme. O exame histopatológico demonstrou a presença de ovos de Schistosoma nessas lesões. Não havia evidências de esquistossomose visceral ativa. Reforça-se a necessidade de que essa doença seja incluída no rol de diagnósticos diferenciais de lesões cutâneas, principalmente em áreas endêmicas, em razão das possíveis consequências em caso de diagnóstico e tratamento tardios.

Caso para diagnóstico / Case for diagnosis

Relata-se caso de erythema gyratum repens em paciente do sexo masculino, de 40 anos, com eritema disseminado, pruriginoso, bizarro, figurado, com fina descamação nas bordas. Na primeira consulta, os exames laboratoriais e a radiografia do tórax foram normais. Durante acompanhamento clínico foi diagnosticado câncer de pulmão por tomografia computadorizada de tórax, tendo a imuno-histoquímica da biópsia da linfonodomegalia inguinal confirmado o pulmão como sítio primário.

A case of erythema gyratum repens is described in a 40-year-old man with a generalized, bizarre, figurated and pruritic erythema with fine scaling borders. Laboratorial exams and radiography of the thorax were normal in the first visit. A tomographic study of the thorax showed a lobulated pulmonary nodule and the immunohistochemistry on the biopsy of an inguinal lymph node confirmed the lung cancer as the primary site of the neoplasia.

Acidentes por lepidópteros (larvas e adultos de mariposas): estudo dos aspectos epidemiológicos, clínicos e terapêuticos / Accidents caused by lepidopterans (moth larvae and adult): study on the epidemiological, clinical and therapeutic aspects

Os autores apresentam e discutem aspectos dos acidentes causados por larvas de lepidópteros (mariposas), enfatizando as manifestações dermatológicas e a dor intensa que caracterizam estes agravos. Além disso, são apresentadas larvas de mariposa que causam manifestações extracutâneas, tais como severos distúrbios de coagulação e artropatias anquilosantes, e ainda dermatites provocadas por insetos adultos. Os principais grupos de lepdópteros causadores de acidentes em humanos são demonstrados, e as medidas terapêuticas atualizadas são discutidas. O lepdopterismo e o erucismo são acidentes comuns, e é importante que o dermatologista saiba reconhecer e tratar esse tipo de envenenamento