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Clonorchis sinensis

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Summary

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Key Points

  • Clonorchis sinensis
    • Characteristics
      • Also known as the Chinese liver fluke
      • Type of trematode (fluke) parasite
    • Transmission
      • Ingestion of raw, dried, or pickled freshwater fish
        • Intermediate hosts include snails and fish
        • Endemic in East Asia
    • Presentation: Clonorchiasis
      • Most asymptomatic
      • GI symptoms may be seen acutely
      • Biliary tract disease (chronic)
        • Includes gallstones, cholangitis, cholangiocarcinoma
        • May present with RUQ pain and jaundice, diarrhea, weight loss
    • Diagnosis
      • Microscopy of stool (O&P)
        • Flask-shaped eggs
    • Treatment
      • Praziquantel