Metagonimiasis
Alternate names[edit | edit source]
Metagonimus yokogawai infection
Definition[edit | edit source]
Metagonimiasis is a disease caused by an intestinal trematode, most commonly Metagonimus yokagawai.
Causal Agents[edit | edit source]
Metagonimus yokogawai, a minute intestinal fluke (and the smallest human fluke).
Epidemiology[edit | edit source]
Mostly the Far East, as well as Siberia, Manchuria, the Balkan states, Israel, and Spain.
Signs and symptoms[edit | edit source]
- The main symptoms are diarrhea and colicky abdominal pain.
- Migration of the eggs to extraintestinal sites (heart, brain) can occur, with resulting symptoms.
Diagnosis[edit | edit source]
- The diagnosis is based on the microscopic identification of eggs in the stool.
- However, the eggs are indistinguishable from those of Heterophyes heterophyes and resemble those of Clonorchis and Opisthorchis.
- Specific diagnosis is based on identification of the adult fluke evacuated after antihelminthic therapy, or found at autopsy.
Treatment[edit | edit source]
- Praziquantel is recommended in both adult and pediatric cases with dosages of 75 mg/kg/d in 3 doses for 1 day.
- Another possible drug option is Tetrachloroethylene, a chlorinated hydrocarbon, but its use has been superseded by new antihelminthic drugs (like Praziquantel).
NIH genetic and rare disease info[edit source]
Metagonimiasis is a rare disease.
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