Abstract Sporotrichosis is the most common subcutaneous mycosis. It is caused by the dimorphic fungus Sporothrix schenckii, and the infection is usually acquired by traumatic inoculation. We describe a case of sporotrichosis in an uncommon location with an unusual mode of transmission. A 49-year-old female patient who lived in an urban area of Rio de Janeiro presented with involvement of the left ear. No history of contact with soil, plants or animals was elicited. The suspected source of infection was a pair of handmade wooden earrings. The delay in the diagnosis and treatment resulted in higher morbidity, unsightly scarring and loss of ear lobe.

O histiocitoma eruptivo generalizado é considerado um subtipo extremamente raro de histiocitose de células não-Langerhans. Na literatura, existem poucos relatos sobre a doença que afeta principalmente adultos. Neste relato apresentamos um caso de histiocitoma eruptivo generalizado em um paciente idoso com sintomas há dois meses. Clinicamente observavam-se pápulas eritematosas múltiplas, assintomáticas, simetricamente distribuídas no tronco e membros. O exame histopatológico mostrou uma infiltração de células mononucleares densa na derme. Na análise imunohistoquímica, as células foram positivas para CD68, mas negativas para CD1a, CD34 e S100. O objetivo do nosso trabalho é relatar um caso de uma doença muito rara, cujos subtipo e faixa etária afetados são ainda mais incomuns.

Generalized eruptive histiocytoma is considered an extremely rare subtype of non-Langerhans cells histiocytosis. In the literature, there are few reports of this disease that mainly affects adults. In this report, we present a case of generalized eruptive histiocytoma in an elderly patient who had presented symptoms for over two months. Multiple erythematous papules, asymptomatic and symmetrically distributed were observed on the trunk and limbs. Histological examination showed a dense mononuclear cell dermal infiltrate. In the immunohistochemical analysis, the cells were CD68 positive, but CD1a, S100 and CD34 negative. A diagnosis of generalized eruptive histiocytoma was established. The aim of our paper is to report a case of a very rare disease, whose subtype and affected age group are even more unusual.