期刊
DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY
卷 28, 期 1, 页码 21-28出版社
TURKISH SOC RADIOLOGY
DOI: 10.5152/dir.2021.20474
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Abernethy malformation is a rare condition associated with multiple congenital anomalies and acquired complications. A detailed understanding of its anatomy and embryology is important for interpreting imaging findings. Computed tomography and magnetic resonance angiography can be used to evaluate the shunt anatomy and concomitant malformations. Mild metabolic abnormalities can be treated with dietary modifications and medical therapy, while symptomatic patients require definitive treatment.
Abernethy malformation is a rare condition in which portomesenteric blood bypasses the liver and drains into a systemic vein through a partial or complete shunt. It is categorized into 2 types on the basis of the shunt pattern between the portal vein and a systemic vein. Abernethy malformation is associated with multiple congenital anomalies and acquired complications. A detailed understanding of the anatomy and embryology is a prerequisite to interpret imaging findings. Computed tomography and magnetic resonance angiography can delineate the shunt anatomy and evaluate concomitant malformations. It is essential to differentiate Abernethy malformation from intrahepatic portosystemic shunts and acquired extrahepatic portosystemic shunts. Mild metabolic abnormalities are treated with dietary modifications and medical therapy. Definitive treatment is done in symptomatic patients. Generally, type I Abernethy patients undergo liver transplantation, and type II undergo shunt occlusion by surgery or transcatheter coiling.
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