A case of colonic lymphangioma associated with ascending colon cancer

Abstract

A 66-year-old woman presented at our hospital after a positive result in her annual fecal occult blood test. The patient showed no abdominal symptoms. Colonoscopy revealed a sessile submucosal tumor─with a pellucid and smooth surface─on the ileocecal valve and type 1 advanced cancer in the ascending colon. Biopsy results showed lymphangioma and well differentiated adenocarcinoma (tub1) .
A fluoroscopic image identified a submucosal tumor-like smooth surface on the ileocecal valve and an elevated lesion in the ascending colon. Right colectomy was performed.
Macroscopic findings of the resected specimen were submucosal tumor on the ileocecal valve (15×10 mm) and type 1 tumor (35×35 mm) in the ascending colon. Pathological examination revealed lymphatic spaces separated by a thin septum, lined with flattened endothelium on the ileocecal valve of submucosal tumor, and a mainly well differentiated adenocarcinoma with partially mucinous adenocarcinoma in the ascending colon cancer.
We report here a relatively rare case of colonic lymphangioma associated with ascending colon cancer.