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IMAGING DIAGNOSIS—PORTAL VEIN APLASIA AND INTERRUPTION OF THE CAUDAL VENA CAVA IN THREE DOGS
Author(s) -
ZWINGENBERGER ALLISON L.,
SPRIET MATHIEU,
HUNT GERALDINE B.
Publication year - 2011
Publication title -
veterinary radiology and ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.541
H-Index - 60
eISSN - 1740-8261
pISSN - 1058-8183
DOI - 10.1111/j.1740-8261.2011.01817.x
Subject(s) - medicine , azygos vein , portosystemic shunt , aplasia , portal vein , vena cava , radiology , angiography , polysplenia , inferior vena cava , shunt (medical) , vein , anatomy , portal hypertension , surgery , situs inversus , cirrhosis
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.