Laparoscopic Retrieval of a Peritoneal Mouse

Abstract EN

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.