From January 1993 to August 1998, five cases of lymphangioma of the colon were diagnosed with endoscopic ultrasonography (EUS) . Endoscopically, four cases revealed as the smooth surfaced hemispherical lesion which covered with normal mucosa with transparency. Only one case revealed a slight elevation in the transverse colon.
EUS findings showed monotonous low echoic area in the submucosal layer and 4 cases of hemispherical lesions were accompanied with septum formation. Four cases were diagnosed cytologically (aspiration cytology) and one case of them was diagnosed histologically after endoscopic resection. Remaining one case was diagnosed only by EUS and have been followed up for these 2 years without any remarkable changes, not only endoscopically but in EUS.
In conculusion, EUS findings of lymphangioma was specific and would be the most helpful diagnostic procedure.
