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英文誌(2004-)

Journal of Medical Ultrasonics

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1993 - Vol.20

Vol.20 No.01

Case Report(症例報告)

(0063 - 0069)

2Dカラードプラ法,X線CTおよびMRアンジオ法により診断しえた肝右葉欠損症の1例

A Case of Agenesis of the Right Lobe of the Liver Diagnosed by 2D Color Doppler, X-ray CT and MRI

望月 環1, 大内 博文2, 平田 健一郎1, 三谷 正信1, 辰口 治樹1, 福田 守道1

Tamaki MOCHIZUKI1, Hirofumi OHUCHI2, Kenichiro HIRATA1, Masanobu MITANI1, Haruki TATSUGUCHI1, Morimichi FUKUDA1

1札幌医科大学機器診断部, 2札幌医科大学第3内科

1Department of Ultrasound and Medical Electronics, Sapporo Medical College Hospital, 2Third Department of Interna Medicine, Sapporo Medical College Hospital

キーワード : Agenesis of the right lobe of the liver, Retro hepatic gallbladder, 2D color Doppler , Magnetic resonance imaging

Congenital agenesis of the right lobe of the liver is a rare anomaly, and reported cases have been diagnosed mostly by invasive methods, such as angiography. Recent developments in non-invasive imaging modalities, ultrasound, X-ray CT and magnetic resonance imaging, has facilitated more simple and accurate diagnosis of anatomical anomalies such as partial organ agenesis. In this report, a case of agenesis of the right lobe of the liver can be identified with 2D color Doppler and MRI was described. A 58-year-old male with right hypochondralgia was first examined by ultrasound, which revealed a retro hepatic gallbladder. 2D color-flow Doppler disclosed a prominent left portal vein and the absence of the caudate lobe. Dynamic X-ray CT and MRI have clearly demonstrated the absence of the right lobe of the liver, and the right hepatic vein, together with the retro hepatic gallbladder. These discoveries confirm the suspected diagnosis of agenesis of the right hepatic lobe.