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英文誌(2004-)

Journal of Medical Ultrasonics

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1988 - Vol.15

Vol.15 No.02

Case Report(症例報告)

(0167 - 0171)

胆道回虫迷入症の超音波像

Ultrasonographic Diagnosis of the Biliary Ascariasis

新谷 寛1, 平田 真人1, 佐々木 雅也1, 小山 茂樹2, 井上 久行2, 細田 四郎2

Yutaka SHINTANI1, Makoto HIRATA1, Masaya SASAKI1, Shigeki KOYAMA2, Hisayuki INOUE2, Shiro HOSODA2

1彦根市立病院内科, 2滋賀医科大学第二内科

1Department of Internal Medicine, Hikone City Hospital, 2The Second Department of Internal Medicine, Shiga University of Medical Science

キーワード : Biliary ascariasis, Liver abscess, Common bile duct, US, ERC (endoscopic retrograde cholangiography)

The biliary ascariasis with liver abscess was diagnosed by ultrasonographic procedure. And the worm was successfully removed by using basket catheter.
The liver abscess was disappeared after removing the worm.
As for ultrasonographic configuration of ascaris lumbricoides we got three aspects. That was followed. In the longitudinal scanning, it showed hyperechoic parallel stripes on the vertical sonobeam and hyperechoic string on the non-vertical sonobeam. In the horizontal scanning, it showed annular hyperechoic configuration (bull's eye appearance).
In addition to conventional diagnostic methods as DIC, ERC or PTC, the ultrasonography was so much effective method for diagnosis of the biliary ascariasis.