Abstract
Lymphangioma occurring in the large intestine is an extremely rare. We have recently encountered a case which was demonstrated a polypoid lesion at splenic flexure on barium enema examination and endoscopic study. The patient, age of 58, male, was hospitalized with complaints of long-term history of hemorrhoid. Barium enema demonstrated a well defined, about 2 cm in size, and smoothly surfaced polypoid defect at the splenic flexure of the transverse colon. Colonofiberscopic examination showed a cystic tumor with fluctation overlying the smooth colonic surface. Endoscopic polypectomy with snare was easily done with carefullness. The bulk of the lesion was excised from normal colonic mucosa. Gross appearance of the excised specimen was a smooth polypoid mass, measured by 1.5×1.0 cm, with cystic spaces containing clear and translucent fluid. Diagnosis of colonic lymphangioma was made by histopathologic confirmation. Conclusively, the characteristic X-ray and endoscopic features were reported as above description.