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FASCIOLA HEPATICA

FASCIOLA HEPATICA. FASCIOLA hepatica. Disease : Fascioliasis & liver rot in animals. Distribution: - Common in cattle & sheep raising countries. FASCIOLA hepatica. Definitive host : man Reservoir host: Cattle, sheep ,goats, buffaloes Habitat: Bile ducts.

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FASCIOLA HEPATICA

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  1. FASCIOLA HEPATICA

  2. FASCIOLA hepatica Disease: Fascioliasis & liver rot in animals. Distribution: - Common in cattle & sheep raising countries.

  3. FASCIOLA hepatica • Definitive host :man • Reservoir host:Cattle, sheep ,goats, buffaloes • Habitat:Bile ducts. • Intermediate host: Lymnaea snails. • Infective stage : Encysted metacercaria.

  4. Mode of infection • Ingestion of raw vegitation or water containing encysted metacercaria.

  5. Life cycle:

  6. Adult FASCIOLA Hepatica

  7. Egg: • Size :140 X 70 µm. • Shape: Oval, Thin walled with operculum. • Color : Yellowish brown (bile stained). • Contents : Ovum & yolk cells (immature).

  8. Miracidium • Pyriform. • Ciliated.

  9. Lymnaea snails

  10. Cercaria (Leptocercus) • Last larval stage inside the snail. • No sexual organs. • Cystogenous glands (help in passing out of snail & in encysting on vegetations or water). • Tail: simple & helps in leaving the snail.

  11. Encysted Metacercaria • Without tail. • Surrounded by a cyst wall.

  12. Clinical Picture : • Fever. • Pain & tenderness in right hypochondrium. • Biliarycolics. • Hepatomegaly, • Jaundice. • Vomiting & diarrhoea. • Toxaemia. • Anaemia & eosinophilia.

  13. Diagnosis • Clinically : A highly suggestive tetrad of: • Fever. • Hepatomegaly. • Pain & tenderness in the right hypochondrium. • Eosinophilia.

  14. Diagnosis II- Laboratory : a. Direct methods • Stool examination by direct smear & concentration methods to find the characteristic eggs. • Bile aspiration from the duodenum & examine for eggs. • US. • Computerized tomography (C.T).

  15. Diagnosis

  16. Diagnosis b. Indirect Methods • ELISA, IHA ,CIEP • Eosinophilia.

  17. Thank You

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