Abstract
A 61-year-old woman was admitted due to watery diarrhea. Abdominal CT revealed an intraperitoneal abscess, 65 mm × 37 mm in diameter, which pressed on the descending colon. Colonoscopy revealed the orifice of the fistula in the descending colon. Fluoroscopic examination showed outflow of contrast medium into the small intestine via the intraperitoneal abscess. Under the diagnosis of a fistula between the jejunum and descending colon and an intraperitoneal abscess, surgery was performed. A partial resection of the jejunum and descending colon was carried out, and a transverse colostomy was performed. On histology, medium-sized lymphocytes were seen to diffusely invade all layers of the jejunum and the descending colon ; on immunohistochemistry, these cells were positive for CD3, CD7, and CD56, and negative for CD8. The patient was diagnosed as having enteropathy-associated intestinal T-cell lymphoma (EATL). The CHOP regimen was given in 2 courses after the operation. Nevertheless, the patient died due to perforative peritonitis 4 months after surgery.
