Ectopic prostate - Case report of a presacral mass presenting with obstructive symptoms

We report the unusual case of a 78-year-old man who presented with obstruct ive bowel symptoms and a 2.5-cm presacral mass. The mass was excised and fo und on pathologic examination to be ectopic prostate tissue complete with a muscular stroma. Review of the literature revealed a number of case report s describing variably sized fragments of ectopic prostate tissue involving a variety of organs, including spleen, uterine cervix, bowel wall, pericoli c fat, anal submucosa, seminal vesicle, testis, and urinary bladder. Howeve r, to our knowledge, this case is unique in that it presented as a relative ly large, isolated presacral mass causing functional bowel impairment. The ectopic location can be related to the normal embryonic development of the prostate, rectum, and bladder.