The World Health Organization (WHO) recently defined systemic Epstein-Barr virus (EBV)-positive T-cell lymphoproliferative disorders (LPD) of childhood as a life-threatening illness. However, this rare disease has not been extensively studied. Here we report a case of systemic EBV-positive T-cell LPD in a previously healthy middle-aged man with a chief complaint of chronic diarrhea. The initial colon biopsy showed focal infiltration of EBV-positive small lymphocytes without any atypia. However, the disease rapidly progressed and the patient required a total colectomy due to severe gastrointestinal bleeding. Three and half months after admission, the patient died from a complication of disseminated intravascular coagulation. The resected colon showed diffuse infiltration of EBV-positive atypical lymphocytes with ischemic change. Most atypical lymphocytes were CD3+ or CD5+. The monoclonality of EBV was demonstrated by sequence variation analysis of the latent membrane protein 1 (LMP1) gene in the colectomy specimen as well as in the initial biopsy.

Adrenocortical oncocytoma is a rare adrenal neoplasm with only 25 cases having been reported in the English medical literature, of which only seven were functional tumors. Since these adrenal tumors are usually nonfunctional, they are mostly incidentally detected, and most of them are benign. Herein, we report on a rare case of a functional adrenocortical oncocytoma of an uncertain malignant potential and this tumor was located in the left adrenal gland in a 59-year-old woman who presented with hypertension. The tumor size was large with foci of necrosis in the cut surface and it exclusively had oncocytic histologic features.