RESUMEN
We report two cases of posttransplant malignant lymphoma(PTML) of B cell origin associated with Epstein-Barr virus(EBV) infection. They were a 52-year-old male and a 37 year-old-female, in whom intermediate-grade diffuse malignant lymphomas of large cell type developed in the submandibular area and jejunum, respectively. DNA and RNA in situ hybridization revealed the presence of EBV-specific DNA and RNA sequences in the tumor cells.
Asunto(s)
Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Herpesvirus Humano 4/aislamiento & purificación , Hibridación in Situ , Trasplante de Riñón/efectos adversos , Linfoma/complicaciones , Trasplante Homólogo , Infecciones Tumorales por Virus/complicacionesRESUMEN
Sebaceous epithelioma is a relatively rare tumor, mostly occuring in the face or scalp. The histogenesis and clinical and pathological features of sebaceous epithelioma have not been clearly defined, and a few other diagnostic terms have been used so far instead of sebaceous epithelioma. Two cases of sebacous epitheliomas were presented. No recurrence or metastasis was observed in our cases, so sebaceous epithelioma is considered to be a benign tumor. A brief review of the literature, concerned about the biological behavior, histogenesis and pathological findings of the sebaceous epithelioma, was made.