RESUMO
A 61-year-old white man presented with a 1-week history of an asymptomatic erythematous, annular plaque with minimal scale limited to the nasal bridge. Histological examination showed a mixed infiltrate of lymphocytes and neutrophils within sebaceous glands. The clinical and histopathological presentation was consistent with a diagnosis of neutrophilic sebaceous adenitis. Several Demodex brevis mites were present deep within the affected sebaceous lobules. Demodex brevis mites are uncommon inhabitants of sebaceous glands of the nose, presenting more commonly on other body sites. The cause of neutrophilic sebaceous adenitis is unknown, but the presence of D. brevis in affected sebaceous glands in this case suggests a possible association.
Assuntos
Dermatoses Faciais/parasitologia , Infestações por Ácaros/parasitologia , Ácaros/patogenicidade , Neutrófilos/parasitologia , Doenças das Glândulas Sebáceas/parasitologia , Glândulas Sebáceas/parasitologia , Animais , Anti-Infecciosos/uso terapêutico , Biópsia , Dermatoses Faciais/diagnóstico , Dermatoses Faciais/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Infestações por Ácaros/diagnóstico , Infestações por Ácaros/imunologia , Ácaros/classificação , Ácaros/imunologia , Neutrófilos/imunologia , Doenças das Glândulas Sebáceas/diagnóstico , Doenças das Glândulas Sebáceas/imunologia , Glândulas Sebáceas/imunologia , Resultado do TratamentoRESUMO
A case of larva migrans or serpiginous linear dermatitis on the scalp of a teenager is reported. An ancylostomid larva was found within a sebaceous gland acinus. The unusual skin site for larva migrans as well as the penetration through the sebaceous gland are highlighted. The probable mechanism by which the parasite reached the skin adnexa is discussed.