Intestinal T-cell lymphoma NOS presenting with sole peritoneal and mucosal lymphomatosis throughout abdominal cavity

摘要

A 54-year-old man without a history of enteropathy developed fever, nausea, anorexia, and abdominal pain one month prior to his initial hospital visit. He was tentatively diagnosed with peritonitis carcinomatosa, and emergent laparotomy was performed in a regional hospital. Intraoperatively, the abdominal cavity was filled with diffusively thickened serous membranes and mesenteries. No identifiable mass, lymph node swelling, or hepatosplenomegaly was noted. Pathological examination of a peritoneal specimen revealed malignant lymphoma of the diffuse small-cell type with inconclusive immunophenotyping.