Fasciolopsis buski

• Common Name of F. buski

  • Giant Intestinal Fluke
  • Large Intestinal Fluke
• Disease Caused by F. buski

  Fasciolopsiasis
• Habitat of F. buski

  Small intestines (duodenum)
• Intermediate Hosts of F. buski

  First Intermediate Host (Snails)

  • Segmentina sp.
  • Hippeutis sp.
  • Gyraulus sp.
  • Planorpis sp.

  Second Intermediate Host (Plants/Vegetation)

  • Water chestnut (Eliocharis tuberosa)
  • Water caltrop (Trapa bicornis)
  • Morning glory/Kangkong (Ipomea obscura)
  • Lotus (Nymphaea lotus)
• Final Hosts of F. buski

  Principal Hosts:

  • Humans, pigs, buffalo, cattle

  Reservoir Hosts:

  • Rabbits, pigs, dogs
• Diagnostic Stage of F. buski

  Unembryonated eggs in feces
• Infective Stage of F. buski

  Metacercaria
• Mode of Transmission (MOT) of F. buski

  Ingestion of contaminated intermediate host (vegetation)
• Treatment for F. buski

  • Praziquantel
  • Praziquantel with tetrachloroethylene
  • Bithionol
• Adult Characteristics of F. buski

  • Flesh-colored
  • No cephalic cone
  • More tapered, no shoulders
  • Large oral sucker
  • Unbranched intestinal ceca
  • Branched ovary with two dendritic testes in tandem
• Laboratory Diagnosis of F. buski

  • Direct Fecal Smear (DFS)
  • Kato-Katz technique
  • Formalin-Ether Concentration Technique (FECT)
• Fasciolopsis buski: Clinical Manifestations

  Symptoms of Fasciolopsiasis

  • Abdominal discomfort (at site of worm attachment)
  • Inflammation and bleeding of affected area
  • Jaundice
  • Diarrhea
  • Edema
  • Epigastric discomfort
  • Intestinal obstruction

  Additional Notes

  • Symptoms mimic duodenal ulcers.
  • May cause malabsorption syndrome (similar to giardiasis).
  • Worst case (rare): Death.
• Images for F. buski

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