Liver Flukes: Fasciola gigantica Flashcards
Common name of Fasciola gigantica
Tropical Liver Fluke
Is the egg of Fasciola gigantica embryonated or unembryonated?
Unembryonated
T/F:
Unembryonated egg of Fasciola gigantica is slightly larger than F. hepatica
True
T/F:
In terms of its adult, F. gigantica is shorter than F. hepatica
False
(F. gigantica adult is longer than F. hepatica
It has less developed shoulders
a. F. gigantica
b. F. hepatica
A.
It has shorter cephalic cone
a. F. Hepatica
b. F. gigantica
B.
The cephalic cone of F. gigantica is longer or shorter?
Shorter
The intestinal ceca of F. gigantica is more branched or branched only?
More branched
1st IH of F. gigantica
● L. auricularia
● L. acuminata
● L. natalensis
2nd IH of F. gigantica
● Ipomea obscura (kangkong)
● Nasturtium officinale (watercress)
Definitive/Final Host of F. gigantica
- Sheep
- Cattle
- Man (Accidental host)
Habitat of F. gigantica
- Biliary passages of liver
- bile duct
MOT of F. gigantica
Ingestion of aquatic plants oor 2nd IH with encysted larva (metacercaria)
Diagnostic stage of F. giagntica
Unembryonated immature egg
Infective stage of F. gigantica
Metacercaria
Testis of F. giantica is branching in what form?
a. in tandem
b. oblique
c. simple
A
Other name for F. gigantica
Giant Liver Fluke
Specimen used to test F. gigantica
Stool
Treatment for F. gigantica
Triclabendazole
Bithionol
MOT of F. gigantica
Ingestion of undercooked or raw aquatic plants containing metacercaria
F. gigantica Adult Morphology
- Longer but narrower
- Shorter Cephalic cone and less developed or prominent shoulders
- Ovary: branches are longer, branching, and more numerous
n/a
F. hepatica and F. gigantica Life Cycle
same as F. hepatica
Adult morphology of F. gigantica
● Finger-like appearance
● Elongated shape
● Long, large, flat body
● Has larger cephalic cone
● Shoulders are less formed
Diagnosis of F. gigantica
● Patient history
● Serological and coprological methods
● ELISA and Western blot
● Identification of eggs in stool, duodenal or bile contents
● Radiological examinations (sonography, CT, ERCP)
