Lymphatic cyst of the colon: a case report.

A rare case of a lymphatic cyst of the ascending colon is reported. The lobulated and fluctuant lesion, located in the hepatic flexure, was diagnosed by barium enema and colonoscopy, incidentally. Surgical treatment with segmental resection of the ascending colon was done because of the risk of obstruction and the question of an underlying malignancy. The clinical features, appropriate treatment, preoperative diagnosis and histopathology are discussed. We emphasize that lymphatic cysts are very rare and are difficult to identify by radiology or colonoscopy before surgery. They must be included in the differential diagnosis of submucosal tumors such as lipomas, leiomyomas and hemangiomas.