title: A case of Echinostoma cinetorchis (Trematoda: Echinostomatidae) infection diagnosed by colonoscopy.
abstract: Human cases of echinostomiasis have been sporadically diagnosed by extracting worms in the endoscopy in Korea and Japan. Most of these were caused by Echinostoma hortense infection. However, in the present study, we detected 2 live worms of Echinostoma cinetorchis in the ascending colon of a Korean man (68-year old) admitted to the Gyeongsang National University Hospital with complaint of intermittent right lower quadrant abdominal pain for 5 days. Under colonoscopy, 1 worm was found attached on the edematous and hyperemic mucosal surface of the proximal ascending colon and the other was detected on the mid-ascending colon. Both worms were removed from the mucosal surface with a grasping forceps, and morphologically identified as E. cinetorchis by the characteristic head crown with total 37 collar spines including 5 end-group ones on both sides, disappearance of testes, and eggs of 108×60 µm with abopercular wrinkles. The infection source of this case seems to be the raw frogs eaten 2 months ago. This is the first case of endoscopy-diagnosed E. cinetorchis infection in Korea.
authors.affiliation: Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
authors.forename: Woon Tae
authors.initials: WT
authors.lastname: Jung
authors.affiliation: Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
authors.forename: Kyeong Ju
authors.initials: KJ
authors.lastname: Lee
authors.affiliation: Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
authors.forename: Hong Jun
authors.initials: HJ
authors.lastname: Kim
authors.affiliation: Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
authors.forename: Tae Hyo
authors.initials: TH
authors.lastname: Kim
authors.affiliation: Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
authors.forename: Byoung-Kuk
authors.initials: BK
authors.lastname: Na
authors.affiliation: Department of Parasitology and Tropical Medicine, and Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju 660-751, Korea.
authors.forename: Woon-Mok
authors.initials: WM
authors.lastname: Sohn
mesh_terms: D000368:Aged; D000818:Animals; D003106:Colon / Q000469:parasitology*; D003113:Colonoscopy; D004449:Echinostoma / Q000033:anatomy & histology / Q000145:classification / Q000302:isolation & purification*; D004451:Echinostomiasis / Q000175:diagnosis* / Q000469:parasitology; D006801:Humans; D007723:Korea; D008297:Male
keywords: Echinostoma cinetorchis; ascending colon; colonoscopy