USMLE

Clonorchis sinensis

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Parasites
  1. Giardia lamblia
  2. Toxoplasma gondii
  3. Entamoeba histolytica
  4. Cryptosporidium
  5. Naegleria fowleri
  6. Trypanosoma brucei
  7. Plasmodium Overview
  8. Plasmodium Disease (Malaria)
  9. Babesia
  10. Trypanosoma cruzi
  11. Leishmania
  12. Trichomonas vaginalis
  13. Enterobius vermicularis (pinworm)
  14. Ascaris lumbricoides (giant roundworm)
  15. Strongyloides stercoralis (threadworm)
  16. Ancyclostoma and Necator
  17. Trichinella spiralis
  18. Trichuris trichiura (whipworm)
  19. Toxocara canis
  20. Onchocerca volvulus
  21. Loa loa
  22. Wuchereria bancrofti
  23. Taenia solium
  24. Diphyllobothrium latum
  25. Echinococcus granulosus
  26. Schistosoma
  27. Clonorchis sinensis
  28. Sarcoptes scabiei (Scabies)
  29. Pediculus humanis and Phthirus pubis (Lice)

Summary

Clonorchis sinensis is a parasite transmitted through ingestion of raw freshwater fish, as well as improperly dried or pickled fish. The condition that Clonorchis sinensis causes is called Clonorchiasis. Chronic Clonorchiasis is notable for causing biliary tract disease, including gallstones, cholangitis, and cholangiocarcinoma. Finally, the main treatment option for Clonorchiasis is praziquantel. 

Key Points

  • Clonorchis sinensis 
    • Characteristics
      • Also known as the Chinese liver fluke
    • Transmission
      • Ingestion of raw, dried, or pickled freshwater fish
    • Presentation: Clonorchiasis
      • Biliary tract disease (chronic)
    • Diagnosis
      • Microscopy of stool (O&P)
        • Flask-shaped eggs
    • Treatment
      • Praziquantel