Abstract
A 48-year-old man who had undergone procedure for prolapse and hemorrhoids (PPH) at another hospital presented to a previous hospital because of anal pain and dysuria, when a cystic lesion which was present on the ventral aspect of the rectum and adjacent to the staple of PPH was found. The cystic lesion was considered to cause his symptoms. Decompression treatment by per rectal puncture of the cyst gave a temporary symptomatic remission, however the symptoms recurred soon. The patient was thus referred to our department. The cyst contained a jelly to mucinous material which did not show any malignant findings on cytodiagnosis. We performed transabdominal drainage of the cyst, cauterization of the cyst wall, and impregnation of the greater omentum under laparotomy. However, the cystic lesion recurred at the same site and his symptoms got worse, so that transanal resection of the cyst was performed 8 months after the initial operation. It was likely that our case was of a disease similar to an implantation cyst that has rarely been reported following mechanical anastomosis of the intestine. As few cases of a cystic lesion developed after PPH have been reported so far, we report our case which is considered rare, together with a review of the literature.
