Mucosal Prolapse Syndrome of the Rectum with Reddening in a Small Area and Reduction of Size after Eight Months, Report of a Case Kazuya Makiyama 1 , Toshiro Tanaka 1 , Masahiro Senju 1 , Tateo Imanishi 1 , Kohei Hara 1 1The Second Department of Internal Medicine, Nagasaki University School of Medicine pp.981-984
Published Date 1988/9/25
DOI https://doi.org/10.11477/mf.1403108520
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 The patient was a 58 year-old man with complaints mainly of mucus stool and elongated defecation time. He was a so-called strainer. Enema disclosed no abnormality. Colonoscopic examination revealed a reddened oval area measuring approximately 2.0×0.5 cm in size along the anterior wall above the lower Houston valve of the rectum. Forceps biopsy disclosed characteristic fibromuscular obliteration and a diagnosis of mucosal prolapse syndrome of the rectum (so-called solitary ulcer syndrome of the rectum) was made. The patient was instructed to reduce the defecation time and “straining” and, about eight months later, the lesion (as disclosed by endoscopy) was reduced to about 1.0 cm in its major axis.

 It was suggested that this syndrome showed at the initial stage a flat reddened abnormality in a small area and changed either into a larger aggravated lesion or was reduced in size, with the passage of time.

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