Ultrasonographic findings of relatively rare liver diseases

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  • MATSUMOTO Naoki
    Division of Gastroenterology and Hepatology, Department of Medicine, Nihon University School of Medicine

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  • 知っておくべき比較的稀な肝疾患の超音波像

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Abstract

<p>It is important to have a knowledge of common diseases while carrying out abdominal ultrasound screening. Moreover, relatively rare diseases should also be recognized.</p><p>Hepatic angiomyolipoma shows up as an extremely hyperechoic mass on ultrasonography with an acoustic shadow and an early venous return. Sclerosing hemangioma is an atypical type of cavernous hemangioma with degenerative changes. Primary hepatic lymphoma appears as an extremely hypoechoic mass with a penetrating vessel. Combined hepatocellular cholangiocarcinoma is a primary hepatic malignant tumor that has characteristics of both hepatocellular carcinoma and cholangiocarcinoma. Intraductal papillary neoplasm of the bile duct (IPNB) is a precancerous lesion that produces mucus and shows dilation of the bile duct upon imaging. Fontan-associated liver disease is a hepatic disorder that arises after Fontan surgery. Long-term mild congestion causes liver cirrhosis or various hepatic tumors.</p>

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