Radiology, Vol 197, 345-349, Copyright © 1995 by Radiological Society of North America

ARTICLES

Aberrant gastric venous drainage in cirrhotic livers: imaging findings in focal areas of liver parenchyma

O Matsui, M Kadoya, J Yoshikawa, T Gabata, S Takahashi, K Ueda, Y Kawamori, T Takashima and Y Nakanuma
Department of Radiology, Kanazawa University School of Medicine, Japan.

PURPOSE: To analyze imaging finding in focal areas of liver parenchyma with aberrant gastric venous drainage (AGVD) in cirrhotic livers. MATERIALS AND METHODS: Eighteen patients with AGVD confirmed with computed tomography (CT) during arterial portography and arteriography underwent ultrasound (US) (n = 18), CT (n = 18), magnetic resonance (MR) imaging (n = 12), dynamic CT (n = 14), and dynamic MR imaging (n = 8). Imaging and histologic (n = 2) findings were analyzed. RESULTS: The focal area with AGVD was hypoechoic on US scans (n = 7), hypoattenuating on CT scans (n = 4), hyperintense on T1-weighted MR images (n = 6), and hypointense on T2-weighted MR images (n = 5). Early enhancement was seen with dynamic CT (n = 8) and with dynamic MR imaging (n = 6), without definite staining on arterial phase of arteriography. Histologic findings revealed hyperplastic changes of liver. CONCLUSION: The imaging findings, except for early enhancement, were very similar to those of adenomatous hyperplasia or well- differentiated hepatocellular carcinoma. The early enhancement was considered due to early venous return compared with that of the surrounding liver.

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