IMAGING DIAGNOSIS—PORTAL VEIN APLASIA AND INTERRUPTION OF THE CAUDAL VENA CAVA IN THREE DOGS
Article first published online: 29 MAR 2011
© 2011 Veterinary Radiology & Ultrasound
Veterinary Radiology & Ultrasound
Volume 52, Issue 4, pages 444–447, July/August 2011
How to Cite
ZWINGENBERGER, A. L., SPRIET, M. and HUNT, G. B. (2011), IMAGING DIAGNOSIS—PORTAL VEIN APLASIA AND INTERRUPTION OF THE CAUDAL VENA CAVA IN THREE DOGS. Veterinary Radiology & Ultrasound, 52: 444–447. doi: 10.1111/j.1740-8261.2011.01817.x
- Issue published online: 19 JUL 2011
- Article first published online: 29 MAR 2011
- Received January 28, 2011; accepted for publication February 25, 2011.
- azygos continuation;
- caudal vena cava aplasia;
- portal vein aplasia;
- portal vein;
Severe portal vascular anomalies have been reported previously accompanying azygos continuation of the caudal vena cava, polysplenia, and situs anomalies in dogs and people. Three dogs with portal vascular anomalies were identified by means of CT angiography as having portal vein aplasia with portal insertion into the caudal vena cava, azygos continuation of the caudal vena cava, and interruption of the pre-hepatic caudal vena cava. This information confirms that complex embryological defects may occur in patients presenting for congenital portosystemic shunt, and that CT angiography is a non-invasive method of completely evaluating these potentially non-surgical portal vascular anomalies.