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英文誌(2004-)

Journal of Medical Ultrasonics

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1988 - Vol.15

Vol.15 No.03

Original Article(原著)

(0221 - 0230)

低エコー型肝血管腫の血管造影所見の検討

Angiographic Pooling Findings in Cases with Hypoechoic Hemangiomas of the Liver

田中 正則, 須藤 俊之, 国兼 誠, 森山 裕三, 近藤 博満, 副島 靖雄, 佐々木 大輔, 吉田 豊

Masanori TANAKA, Toshiyuki SUTO, Makoto KUNIKANE, Yuzo MORIYAMA, Hiromitsu KONDOH, Yasuo SOEJIMA, Daisuke SASAKI, Yutaka YOSHIDA

弘前大学医学部第一内科

The First Department of Internal Medicine, Hirosaki University School of Medicine

キーワード : Ultrasound, Ultrasound, Hepatic hemangioma, Hepatic hemangioma, Angiography, Angiography

Although most of hemangiomas of the liver are demonstrated as hyperechoic lesions by ultrasound, some hemangiomas are hypoechoic. To investigate the cause of hypoechoic pattern, we examined 30 hepatic hemangiomas in 25 patients by ultrasound and compared with the results of the angiography during the last 5 years. The pattern of the hemangioma was hypoechoic in 8, isoechoic in 1, and hyperechoic in 21. By ultrasound, posterior echo enhancement was observed in 5 (62%) of 8 hypoechoic lesions, 0 (0%) of 1 isoechoic lesion, and 4 (19%) of 21 hyperechoic lesions. The pooling findings of the angiography which revealed vascularity were classified into three grades: (+), (++), and (+++). In 8 hypoechoic lesions, 2 (25%) showed pooling (+), 1 (13%) pooling (++), and 5 (62%) pooling (+++), although none of 21 hyperechoic lesions showed pooling (+++). Hypoechoic pattern of hepatic hemangiomas by ultrasound seems to be consistent with the pooling (+++) by angiography. In conclusion, dilated vascular cavity of the hemangioma causes the hypoechoic pattern by ultrasound.