A human infection of Echinostoma hortense in duodenal bulb diagnosed by endoscopy - PubMed (original) (raw)

Case Reports

A human infection of Echinostoma hortense in duodenal bulb diagnosed by endoscopy

Young-Doo Chang et al. Korean J Parasitol. 2005 Jun.

Abstract

As gastroduodenoscopy performed more frequently, case reports of human echinostomiasis are increasing in Korea. A Korean woman presented at a local clinic with complaints of abdominal pain and discomfort that had persisted for 2 weeks. Under gastroduodenoscopy, two motile flukes were found attached on the duodenal bulb, and retrieved with endoscopic forceps. She had history of eating raw frog meat. The two flukes were identified as Echinostoma hortense by egg morphology, 27 collar spines with 4 end-group spines, and surface ultrastructural characters. This report may prove frogs to be a source of human echinostome infections.

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Figures

Fig. 1

Fig. 1

Echinostomes (arrows) on the duodenal bulb.

Fig. 2

Fig. 2

An egg of Echinostoma hortense from the patient. Bar = 54 µm.

Fig. 3-5

Fig. 3-5

Scanning electron micrographs of an Echinostoma hortense specimen retrieved from the patient. Fig. 3. Ventral view. Fig. 4. The oral opening and head crown spikes with collar spines. Fig. 5. The cirrus erected from the genital pore anterior to the acetabulum.

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