Trematodes (Fasciola hepatica) (Fasciola gigantica) Flashcards
(37 cards)
Common name of Fasciola hepatica
Sheep liver fluke
True or False: Man is an accidental host of Faciola hepatica
True
Infective stage of Fasciola hepatica
Metacercaria
Diagnostic stage of Fasciola hepatica
Eggs in stool of man / final host
Final host of Fasciola hepatica
Cattle
Mode of transmission of Fasciola hepatica
ingestion of metacercaria from second intermediate host (aquatic vegetation)
Life span of Fasciola hepatica
9 to 13 years
Habitat of Fasciola hepatica
Biliary ducts of liver
1st intermediate host of Fasciola hepatica
Snail (Lymnea philippinensis
2nd intermediate host of Fasciola hepatica
Kangkong (Ipomea obscura), Water cress (Nastrutium officinale)
In the Acute stage, what is the pathology caused by Fasciola hepatica?
Juvenile flukes can cause traumatic damage to intestinal wall and liver parenchyma causing necrotic lesions
Symptoms of the Acute stage of Fasciola hepatica
high fever, hepatomegaly, marked EO
What is False fasciolopsis
Ingestion of infected raw liver with eggs. Eggs pass through the body but does not hatch.
Suffocation due to temperature lodgement of worms in pharynx from eating half-cooked livers / raw of goat and sheep
Halzoun
Pathology in the Chronic stage of Fasciola hepatica
Obstruction of vessels leading to liver cirrhosis (common form of liver cancer)
Diagnosis of Fasciola hepatica
Sedimentation of stool, Surgical recovery of worms, X-Ray, and PCR
Drug of choice (Treatment) of Fasciola hepatica
30-50 mg/kg of Bithionol
Common preventive measures of Fasciola hepatica
- Wash and cook vegetables well
- Eliminate snail host
- Kill parasites in reservoir host (goats and cattles)
Uterus of Fasciola hepatica
Coiled
Intestinal ceca of Fasciola hepatica
long and branched
Tegument of Fasciola hepatica
minute spines
With or Without: Conical projection / cephalic cone
With
With or Without: Prominent shoulders
With
Oral suckers are ___ Ventral suckers of Fasciola hepatica
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