RESUMO
Acral purpura is generally a hallmark for severe internal disease. However, exogenous pigmentation related to contact with invertebrates, can induce acral purpura-like lesions. Data regarding the beetle's ability to cause skin hyperpigmentation or purpura-like lesions are scarce. We report a case of exogenous pigmentation caused by accidental contact with a darkling beetle, clinically simulating acral purpuric lesions. The history of recent drug inhalation and abnormal autoimmunity tests made this diagnosis difficult.
Assuntos
Besouros , Hiperpigmentação/etiologia , Dedos do Pé/patologia , Animais , Diagnóstico Diferencial , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Papillary and pseudopapillary features are histopathologic findings typically associated with carcinomas (thyroid, pancreas, breast, prostate, bladder, kidney, or ovary) or mesothelioma. Melanoma is typically composed of nested and variably pigmented atypical cells. Here, we report a case of in-transit metastasis of melanoma presenting with prominent papillary features, and we discuss the differential diagnoses of neoplasms with papillary features. This case report suggests that the spectrum of neoplasms with papillary features should be expanded to include melanoma, a pattern that, to the best of our knowledge, is uncommon.
Assuntos
Neoplasias de Cabeça e Pescoço/patologia , Melanoma/secundário , Couro Cabeludo/patologia , Neoplasias Cutâneas/patologia , Idoso , Biomarcadores Tumorais/análise , Biópsia , Diagnóstico Diferencial , Neoplasias de Cabeça e Pescoço/química , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Imuno-Histoquímica , Masculino , Melanoma/química , Melanoma/cirurgia , Valor Preditivo dos Testes , Couro Cabeludo/química , Couro Cabeludo/cirurgia , Neoplasias Cutâneas/química , Neoplasias Cutâneas/cirurgia , Resultado do TratamentoAssuntos
Fucosiltransferases/genética , Hidradenite Supurativa , Dermatopatias Genéticas , Dermatopatias Papuloescamosas , Adulto , Feminino , Hidradenite Supurativa/diagnóstico , Hidradenite Supurativa/genética , Humanos , Hiperpigmentação , Mutação , Dermatopatias Genéticas/diagnóstico , Dermatopatias Genéticas/genética , Dermatopatias Papuloescamosas/diagnóstico , Dermatopatias Papuloescamosas/genéticaRESUMO
Objetivo: Reportar casos de linfadenoma sebáceo, un tumor raro, localizado principalmente en la glándula parótida, con muy pocos casos descritos en la literatura. Casos clínicos: Presentamos 2 casos de esta rara afección, tratados en el Hospital Universitario Miguel Servet de Zaragoza, de enero de 2010 a diciembre de 2014. El diagnóstico, tanto por imagen como citológico, es difícil debido a su baja prevalencia y a la gran variedad de tumores de glándula parótida que existen. En los 2 casos presentados ha sido necesaria la exéresis para llegar al diagnóstico. El tratamiento curativo consiste en la exéresis completa de la tumoración.
Aim: To report a rare parotid tumour: sebaceous lymphadenoma, with very few cases reported in the literature. Cases report: We present 2 cases of lymphadenoma sebaceous of the parotid gland treated by surgery at University Hospital Miguel Servet of Zaragoza between January 2010 and December 2014. The diagnosis, both radiological and cytological, is difficult because of their low prevalence and the great variety of parotid gland tumors existent. In our 2 cases described, excision has been required for diagnosis. A complete excision of the tumor is required for curative treatment.