CLINICAL EVALUATION OF FLAT TYPE MUCOSAL PROLAPSE SYNDROME

Abstract

<Background> We experienced 14 cases of flat type mucosal prolapse syndrome (MPS) in the period from May, 1994 to May, 2002. <Methods> We investigated endoscopic, clinical and pathological findings of 14 cases. <Results> There were two types of endoscopic findings. (1) A lesion annular in shape centering the anterior wall of the lower Huston valve (4 cases), and (2) A lesion with reddness in the rectum just above the anus (10 cases). <Conclusions> The former was frequent in patients with irritable bowel disease. Most of the latter cases were asymptomatic and had hemorrhoids. The endoscopic retroversion maneuver in the rectum was useful for detecting the latter.