ACASE OF MUCOSAL PROLAPSE SYNDROME OBSERVED BY ENDOSCOPIC ULTRASONOGRAPHY

Abstract

We reported here the case of a 46-year old woman with mucosal prolapse syndrome (MPS). She was positive for fecal occult blood test on routine health care check. Radiological and endoscopic examination showed a solitary ulcer with a well-demarcate dedge in the rectum. Biopsy speciment of the ulcer showed fibromusculosis in the rectal mucosa. we observed a U1-II rectal ulcer with swelling of the third layer by endoscopic ultrasonography (EUS). Four months later, the ulcer changed to the scarring stage and a low echoic area in the third layer remained in the ultrasound image. EUS was useful in distinguishing a rectal ulcer from rectal tumor. The ultrasound image of MPS might reveal the useful information With regard to the mechanisms of MPS in the near future.