井上 健一郎　¹, 澤 隆文¹, 牟田 広毅¹, 大石 哲也¹, 中尾 治彦¹, 川口 昭男¹, 井上 哲治¹, 伊津野 稔², 村田 育夫², 牧山 和也², 原 耕平²

Kenichirou INOUE¹, Takafumi SAWA¹, Hiroki MUTA¹, Tetsuya OOISHI¹, Haruhiko NAKAO¹, Akio KAWAGUCHI¹, Tetsuji INOUE¹, Minoru ITSUNO², Ikuo MURATA², Kazuya MAKIYAMA², Kouhei HARA²

¹春回会井上病院, ²長崎大学医学部第二内科

¹Inoue Hospital, ²The Second Department of Internal Medicine, Nagasaki University School of Medicine

キーワード : Small intestine, Anisakiasis, Ultrasonography

Ultrasonographic studies were performed on 3 patients with acute small intestinal anisakiasis. All the cases had a history of eating raw fish and were daiagnosed as anisakiasis by Barium study. Ultrasonographic studies showed thickening of the small intestinal wall at the site of the worm extending for 10∼20 cm, and the small intestine proximal to the lesion showed marked dilatation due to ileus. Among 5 ultrasonographical layers of the small intestinal wall, the second and third layers, which were thought to be mucosal and submucosal layers, were thickened.