https://bmcresnotes.biomedcentral.com/articles/10.1186/s13104-018-3133-z

Background

Echinostomiasis is a food-borne infection caused by an intestinal trematodes belonging to the family Echinostomatidae. They infect the gastrointestinal tract of humans. Patients are usually asymptomatic. However, with heavy infections, the worms can produce catarrhal inflammation with mild ulceration and the patient may experience abdominal pain, anorexia, nausea, vomiting, diarrhea and weight loss. Infection are associated with common sociocultural practices of eating raw or insufficiently cooked mollusks and fish.

Case presentation

We report a first case of echinostomiasis from Nepal in a 62 years old, hindu male who presented to Tribhuvan University Teaching Hospital, Kathmandu with a complaint of abdominal pain and distension with vomiting on and off for 3–4 months. He had history of consumption of insufficiently cooked fish and snail with alcohol. During endoscopy, an adult flat worm was seen with mild portal hypertensive gastropathy (McCormack’s classification) and erosive duodenopathy. The adult worm was identified as Echinostomaspecies based on its morphology and characteristic ova found on stool routine microscopic examination of the patient. Patient was treated with praziquantel 40 mg/kg (single dose) which is the drug of choice for Echinostoma species infection by which he got improved and on follow up stool examination after 2 weeks revealed no ova of Echinostoma species.

Conclusions

The patients having history of consumption of insufficiently cooked snail and fish with suggestive clinical features of echinostomiasis should be suspected by physicians and ova of Echinostoma species should be searched by trained microscopists. An epidemiological survey is required to know the exact burden of Echinostoma species infection in the place where people have habit of eating insufficiently cooked fish and snails, as it can be endemic in that community or geographical area.

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