Bladder duplication with one exstrophy and one cloaca.

Abstract

Bladder duplication is a rare anomaly. Less than 100 cases of all types have been described in the literature. When duplication of the bladder occurs, it has previously been described as a mirror image or as a septate bladder. A newborn female presented with what appeared to be a complete bladder exstrophy, a large ruptured omphalocele with perforated large bowel, an imperforate anus, and a bifid clitoris. Urine was seen emanating from various sites: the bladder mucosa, the mucous fistula constructed at the time of the colostomy, and the left hemiclitoris. The anatomic puzzle was resolved when multiple studies disclosed the problem to be a bladder duplication. The bladder on the anterior abdominal wall was exstrophied, the intraabdominal bladder was a cloaca, and the left hemiclitoris contained a phallic urethra, which drained the intraabdominal bladder. Total correction with normal function was obtained. This patient demonstrates that bladder duplication may present in various ways.