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英文誌(2004-)

Journal of Medical Ultrasonics

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1986 - Vol.13

Vol.13 No.06

Case Report(症例報告)

(0473 - 0479)

肝脂肪原性腫瘍の2例

Lipomatous Tumors of the Liver : Report of Two Cases

岩井 一郎1, 真島 康雄1, 藤本 隆史1, 田中 正俊1, 青木 義憲1, 平井 賢治1, 阿部 正秀1, 安倍 弘彦1, 谷川 久一1, 杉原 茂孝2, 藤吉 康明3

Ichiro IWAI1, Yasuo MAJIMA1, Takafumi FUJIMOTO1, Masatoshi TANAKA1, Yoshinori AOKI1, Kenji HIRAI1, Masahide ABE1, Hirohiko ABE1, Kyuichi TANIKAWA1, Shigetaka SUGIHARA2, Yasuaki FUJIYOSHI3

1久留米大学医学部第二内科, 2久留米大学医学部第一病理, 3久留米大学医学部第二病理

1The Second Department of Internal Medicine, Kurume University, 2The First Department of Pathology, Kurume University, 3The Second Department of Pathology, Kurume University

キーワード : Lipomatous tumor, Angiomyolipoma, Liposarcoma, Liver, US, CT

 Two lipomatous tumors of the liver were reported. The first case is a 65-year-old woman with angiomyolipoma in the posteroinferior segment of the liver. She had no evidence of the tuberous sclerosis. Its US findings were very hyperechoic (or bright) lesion with deep attenuation and acoustic shadow. The CT appearance of the tumor was oval low density area of which CT value was -80 Hounsfield units. Angiography showed hypervascular tumor, and tumor stain with drainage vein in the venous phase. The resected specimen was 8×8×11 cm in size, tan soft tumor. Histologically it was composed of blood vessels, smooth muscle and adult-type adipose tissue. The second case was a 27-year-old man. The tumor located in the inferior segment of the liver and liposarcoma was suspected by the biopsied specimen. On the US the lateral part of the tumor was hyperechoic with acoustic shadow and the medial part was hypoechoic. On the CT scan the lateral part of the tumor showed fat density and the medial part showed isodensity to the surrounding parenchyma.