Pediatric Radiology

, Volume 49, Issue 3, pp 387–398 | Cite as

The spectrum of cloacal malformations: how to differentiate each entity prenatally with fetal MRI

  • Kimberly A. DannullEmail author
  • Lorna P. Browne
  • Mariana Z. Meyers
Pictorial Essay


The term cloacal malformation is commonly used to describe the classic cloacal malformation where there is a single common urogenital and intestinal channel located at the expected site of the urethra. There is, however, a spectrum of cloacal abnormalities that differ from this classic type and are less well discussed in the radiologic and surgical literature. The aim of this pictorial essay is to familiarize radiologists with the anatomy, appropriate terminology and key prenatal imaging findings that differentiate the six entities that constitute the spectrum of cloacal abnormalities.


Classic cloaca Cloaca Cloacal dysgenesis Cloacal malformation Fetus Magnetic resonance imaging Posterior cloaca Urogenital sinus 


Compliance with ethical standards

Conflicts of interest



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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Diagnostic Radiology, Division of Pediatric Radiology,Children’s Hospital Colorado,AuroraUSA
  2. 2.Department of Radiology,University of Colorado School of Medicine,AuroraUSA

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