Two cases of hepatic angiomyolipoma with different ultrasonographic and radiographic findings

Hirayama Itsuko, Asahina Yasuhiro, Tsuchiya Kaoru, Sato Mitsuaki, Tanaka Tomohiro, Yasui Yutaka, Komatsu Nobutoshi, Umeda Naoki, Hosokawa Takanori, Ueda Ken, Nakanishi Hiroyuki, Itakura Jun, Kurosaki Masayuki, Miyake Shozo, Matsunaga Koutarou, Himeno Yoshiro, Nakamura Noriaki, Arii Shigeki, Izumi Namiki

doi:10.2957/kanzo.49.440

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若年女性に発症し，異なる画像所見を呈した肝血管筋脂肪腫の２例
症例報告若年女性に発症し,異なる画像所見を呈した肝血管筋脂肪腫の2例
ショウレイホウコクジャクネンジョセイニハッショウシコトナルガゾウショケンオテイシタカンケッカンキンシボウシュノ 2レイ

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Abstract

Case 1: A 44 year-old woman was diagnosed with a liver tumor on health screening without hepatitis virus antigen and antibody. Combined imaging (contrast enhanced ultrasonography, superparamagnetic iron oxide-enhanced MRI, and CT angiography) findings suggested liver angiomyolipoma, which was later confirmed pathologically. Since no increase in the tumor size was observed after subsequent follow-ups, hepatic resection was not performed.<br> Case 2: A 40 year-old woman was diagnosed with a liver tumor. Unlike case 1, the possibility of HCC could not be eliminated based on combined imaging findings. Since the tumor was found to be progressively increasing in size within a short period, hepatic resection was performed. Angiomyolipoma was diagnosed based on pathological findings. Although angiomyolipoma was diagnosed in both the cases, imaging tests in case 1 showed typical findings with the presence of large amount of adipose cells in the tumor, whereas case 2 had fewer adipose cells, making diagnosis by combined imaging difficult. Ultrasonography with contrast agent, which visualizes the hepatic vein, was useful for diagnosis in case 2.<br>

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Kanzo

Kanzo 49 (9), 440-448, 2008

The Japan Society of Hepatology

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