内田 浩也¹, 川崎 俊彦², 東 貞之¹, 前西 文秋¹, 堀川 里紀¹, 榊原 由希¹, 登尾 薫¹, 樋口 友恵¹, 藤堂 彰男², 小森 英司², 三村 純², 井谷 智尚², 柴峠 光成², 石川 泰³, 奥野 敏隆³, 橋本 公夫⁴

Hiroya UCHIDA¹, Toshihiko KAWASAKI², Sadayuki AZUMA¹, Fumiaki MAENISHI¹, Riki HORIKAWA¹, Yuki SAKAKIBARA¹, Kaoru NOBORIO¹, Tomoe HIGUCHI¹, Akio TODO², Hideshi KOMORI², Jun MIMURA², Toshinao ITANI², Mitsushige SHIBATOHGE², Toru ISHIKAWA³, Toshitaka OKUNO³, Kimio HASHIMOTO⁴

¹西神戸医療センター臨床検査技術部, ²西神戸医療センター内科, ³西神戸医療センター外科, ⁴西神戸医療センター病理科

¹Clinical Laboratory, Nishi-Kobe Medical Center, ²Department of Internal Medicine, Nishi-Kobe Medical Center, ³Department of Surgery, Nishi-Kobe Medical Center, ⁴Department of Pathology, Nishi-Kobe Medical Center

キーワード : Color Doppler ultrasonography, Hepatocellular adenoma, Pulsed Doppler ultrasonography

Hepatocellular adenoma is a rare, benign hepatic tumor, possibly associated with such factors as glycogen storage disease and long-term intake of oral contraceptives. The first of the two cases reported here was that of a 31-year-old woman who had used oral contraceptives for several months at the age of twenty-one. Case 2 was that of a 44-year-old man with no history of glycogen storage disease or use of steroids. Gray-scale US showed an isoechoic tumor about 7 cm in diameter in the left hepatic lobe in case 1 and a hypoechoic tumor about 8 cm in diameter in the left hepatic lobe in case 2. Color Doppler US showed multiple blood blow signals in the peripheral and central portions of these two tumors. Pulsed Doppler imaging showed a pulsatile waveform in the peripheral portion and a continuous waveform in the central portion of both tumors. Although sonographic criteria for diagnosing hepatocellular adenoma have not yet been established, Doppler US may prove useful in the diagnosis of hepatocellular adenoma.