Ileocolic intussusception

Abstract

A 73-year-old woman was referred for evaluation of severe anemia. Double (air/barium) contrast radiography of the colon demonstrated a huge polypoid tumor that appeared to prolapse from the ileum into the cecum, suggesting an ileocolic intussusception (A).Amultinodular tumor approximately 40mm in diameter with superficial ulcerations was noted at colonoscopy (B). Chromoendoscopy indicated that it was covered by normal mucosa, and biopsy specimens did not reveal any specific finding. By EUS, the tumor was homogeneous and hyperechoic (C). Based on these findings, an ileal lipoma was suspected. Because of the bleeding and the obstructive nature of the ileal tumor, it was resected surgically. Macroscopically, the resection specimen consisted of a semipedunculated submucosa tumor (55 × 50 mm) arising in the ileum. The cut surface was homogeneousand yellow. Histopathologically, the tumor was a lipoma that was thought to have originated from the subserosal layer (D; H&E, orig. mag. ×1).