Hara Hirotaka, Miyauchi Yuji, Tahara Shinsaku, Yamashita Hiroshi
Nagoya J Med Sci. 2014 Feb;76(1-2):181-5.
A 64-year-old Japanese man visited our outpatient department complaining of an irritable sensation in the throat, occurring two days after eating raw freshwater fish (carp sashimi) at a Japanese-style inn. During laryngeal endoscopy, a slow-moving worm (fluke) was found attached to the surface of the right aryepiglottic fold. After inhalation of 4% lidocaine, the fluke was removed using endoscopic forceps. Patient's throat symptoms immediately improved. The worm was microscopically identified as Clinostomum complanatum. C. complanatum is a digenetic trematode that usually infects fish-eating water birds. Clinostomum infections in humans are rare, and only 21 cases have been described in Japan and Korea. C. complanatum infection is known to occur after eating raw freshwater fish, which is a secondary intermediate host. In humans, the metacercariae are released into the stomach and migrate through the esophagus before lodging in the throat. Primary therapy involves endoscopic removal of the worm.
一名64岁的日本男性因在一家日式旅馆食用生淡水鱼（鲤鱼刺身）两天后出现喉咙不适感，前来我院门诊就诊。在喉镜检查时，发现一条活动缓慢的蠕虫（吸虫）附着在右侧杓会厌襞表面。吸入4%利多卡因后，用内镜钳将吸虫取出。患者的喉咙症状立即得到改善。经显微镜鉴定，该蠕虫为扁体 clinostomum。扁体 clinostomum 是一种双殖吸虫，通常感染食鱼水鸟。人类感染 clinostomum 极为罕见，在日本和韩国仅报道过21例。已知食用作为第二中间宿主的生淡水鱼后会发生扁体 clinostomum 感染。在人类中，囊蚴会释放到胃中，经食管迁移后寄居于喉咙。主要治疗方法是通过内镜取出蠕虫。
