Related Experiment Video
Updated: Mar 19, 2026

Assessing Urinary Tract Junction Obstruction Defects by Methylene Blue Dye Injection
Published on: October 12, 2017
Antenatal three-dimensional sonographic diagnosis of persistent cloaca
Megumi Ishibashi1, Hirokazu Tanaka1, Megumi Ito1
1Department of Perinatology and Gynecology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan.
Abstract:
We present a case of fetal persistent cloaca diagnosed by two- (2D) and three-dimensional (3D) sonography and the HDlive rendering mode. 2D sonography revealed a bicornate uterus with hydrometra, bilateral hydrosalpinx, a single umbilical artery, and ascites. 3D sonography and the HDlive rendering mode clearly showed these intra-abdominal structures. To the best of our knowledge, this is the first report of persistent cloaca employing antenatal 3D sonography and the HDlive rendering mode.
Related Concept Videos
Imaging Studies VI: Voiding Cystourethrography and Cystography
Anatomy of the Genitourinary System II: Bladder and Urethra

