title: Laparoscopic retrieval of a peritoneal mouse.
abstract: A 67-year-old Caucasian male was referred by the urology service with a history of incomplete bowel emptying. He complained of tenesmus. MRI scan suggested a leiomyoma lying anterior to the rectum. He underwent examination under anaesthesia and attempted endorectal ultrasound and biopsy. However, the lesion seemed to migrate cranially and was impalpable. At laparoscopy, a mobile, unattached, 5.5 × 5 × 3.5, cream-coloured 'egg was retrieved from the retrovesical space. Histology confirmed a hyalinised fibrocollagenous lesion lined with mesothelium. A comprehensive review of the literature is presented.
authors.affiliation: Division of Colorectal Surgery, Departments of Colorectal Surgery and Urology, Adelaide and Meath Incorporating the National Children's Hospital, Tallaght, Dublin 24, Ireland.
authors.forename: Dara O
authors.initials: DO
authors.lastname: Kavanagh
authors.forename: Diarmaid
authors.initials: D
authors.lastname: Moran
authors.forename: Robert
authors.initials: R
authors.lastname: Flynn
authors.forename: Paul C
authors.initials: PC
authors.lastname: Neary