Cutaneous smooth muscle tumors associated with Epstein-Barr virus in an adult patient with HIV

Abstract Epstein Barr virus-associated smooth muscle tumors are an uncommon neoplasm that occurs in immunosuppressed patients of any age. Usually, it presents as multifocal tumors mainly in the spinal cord, epidural region, gastrointestinal tract and liver, upper respiratory tract and skin, the latest with few cases reported in the literature and related with human immunodeficiency virus infection and acquired immune deficiency syndrome. The authors present the first case of a Colombian adult patient with human immunodeficiency virus infection and multifocal Epstein Barr virus-associated smooth muscle tumors in the skin and epidural region, confirmed by histopathology, immunohistochemistry and in situ hybridization studies.

Dermatitis granulomatosa intersticial en placas con artritis en una adolescente: Informe de un caso / Granulomatous interstitial dermatitis with plaques and arthritis in a teenager: Case report

Se presenta el caso de una adolescente, diabética, con artritis idiopática juvenil indiferenciada a placas y máculas eritemato-violáceas en piel, cuya biopsia mostró cambios incipientes de una dermatitis granulomatosa intersticial. Recibió tratamiento con hidroxicloroquina con respuesta parcial. La dermatitis granulomatosa intersticial en placas asociada a artritis es una dermatosis idiopática rara que afecta usualmente a mujeres adultas, con afección poliarticular relacionada con alguna enfermedad autoinmune. En la patogénesis se ha sugerido un fenómeno de autoinmunidad con formación de complejos inmunes que se depositan en el endotelio. El curso clínico se caracteriza por periodos de exacerbación y remisión o por resolución espontánea de las lesiones.Palabras clave: poliartritis, dermatitis granulomatosa intersticial, síndrome de Ackerman, signo de la cuerda, diagnósticos diferenciales.

The clinical case report of a 14-year-old diabetic teenager with undifferentiated juvenile arthritis and 2- years history of skin-colored maculae and plaques is presented. Biopsy examination of a skin specimen showed findings of early interstitial granulomatous dermatitis. The patient was treated with hydroxicloroquine with partial response. Interstitial granulomatous dermatitis with plaques and arthritis is an idiopathic rare disease that usually affects young women. It is usually related to rheumatoid arthritis or another autoimmune disease. It represents a disorder that involves degeneration of collagen by immune complex-mediated formation and deposition on the endothelial surface. Prognosis is variable with remissions and exacerbations or spontaneous and complete remission of skin lesions.Key words: poliarthritis, granulomatous interstitial dermatitis, Ackerman syndrome, rope sign, differential diagnosis