吉澤 教彦¹, 奥田 喜朗¹, 河合 誠一郎¹, 矢野 隆嗣², 伊東 敬之², 北本 明弘³, 酒井 立美³, 為田 靭彦⁴, 小坂 義種⁵

Norihiko YOSHIZAWA¹, Yoshiro OKUDA¹, Seiichiro KAWAI¹, Takashi YANO², Hiroyuki ITO², Akihiro KITAMOTO³, Tatsumi SAKAI³, Yukihiko TAMEDA⁴, Yoshitane KOSAKA⁵

¹済生会松阪病院内科, ²済生会松阪病院外科, ³済生会松阪病院超音波検査室, ⁴三重大学医学部第一内科, ⁵三重大学医学部検査医学

¹Division of Internal Medicine, Saiseikai Matsusaka Hospital, ²Division of Surgery, Saiseikai Matsusaka Hospital, ³Division of Diagnostic Ultrasound, Saiseikai Matsusaka Hospital, ⁴First Department of Internal Medicine, Mie University School of Medicine, ⁵Department of Laboratory Medicine, Mie University School of Medicine

キーワード : Ultrasonography, Biliary ascariasis, Ascaris

We present three cases of biliary ascariasis. Two patients experienced colicky pain in the epigastrium and another suffered several episodes of right upper quardrant pain for three years. Eosinophilia was detected in two patients, liver function tests disclosed an elevation of bilirubin, transaminase and alkaline phosphatase in one patient.
Ultrasonography showed characteristic images of biliary ascariasis as follow: two cases had two echogenic strips containing an anechoic inner line in biliary tract and another had single echogenic strip.
We considered that ultrasonography is useful for the diagnosis of the biliary ascariasis.