2023 Volume 65 Issue 2 Pages 125-131
A 52-year-old man who underwent stapled hemorrhoidopexy for internal hemorrhoids 15 years ago, visited our hospital for evaluation of anorectal discomfort and dyschezia. Colonoscopy revealed a submucosal tumor on the dorsal aspect of the rectum. His symptoms were attributed to the submucosal lesion, and we performed endoscopic unroofing. Intraoperatively, we detected a cyst-like structure containing a spherical foreign body under the mucosa, and the foreign body was removed. The patientʼs symptoms disappeared rapidly after endoscopic treatment. The tumor was histopathologically diagnosed as a pararectal cyst containing a spherical foreign body. Owing to its minimal invasiveness, we recommend endoscopic unroofing as a useful therapeutic option for symptomatic pararectal cysts.
