Double Bladder and Related Anomalies: Clinical and Embryological Aspects and a Case Report

Abstract

REDUPLICATIONS of the urinary bladder and related anomalies are uncommon. The purpose of this paper is to record a recent case, to present a modified classification of these anomalies and t o review the literature on the subject. FIG. I Congenital anomalies of urinary bladder.

Complete Duplication of the Bladder and Urethra in the Coronal Plane: Case Report with Review of the Literature

“…The etiology of this condition is unknown, but two embryologic explanations have been offered for the secondary duplication resulting from a coronal septum: (1) excessive constriction between the urogenital and vesicourethral portions of the ventral cloaca, and (2) a supernumerary cloacal septum that indents the epithelial wall of the bladder [6]. …”

Successful management of a completely duplicated lower urinary system

“…Several authors [3,5] declined intervention because there was no dysfunction present. In fact, Abrahamson [2], who classified duplicate bladders in a literature review citing 55 articles, concludes that complete reduplication is quite consistent with normal life and does not recommend treatment unless necessary.…”

Complete Bladder Duplication with Severe Urogenital Malformations: Embryological and Clinical Aspects

“…Ravitch and Scott noted that complete duplication of the bladder and hindgut probably occurs because of partial twinning of the tail portion of the embryo [5] . Abrahamson noted that excessive constriction of the ventral cloaca or a supernumerary cloacal septum that indents the epithelial wall of the bladder could be an explanation for bladder duplication in the coronal plane [1] . Bellagha et al suggested that the development of a sagittal fi ssure on the cloacal plate occurs when the urorectal septum separates the urogenital from the digestive sinus [2] .…”