Infective stage (tissue dwelling)

Higher risk for development of liver cancer

Worms localized to the veins around urinary bladder

Blood dwelling flukes pathogenic stage is adult worm EXCEPT

Schistosomes which are composed of: s. Japonicum s. Mansoni S.haematobium

Cancer of urinary bladder

Adult female migrates to the portal vein where egg laying may occurs

Obstructive jaundice (2)

S-japonicum associated with

Intermediate host: freshwater snail

lid like structure seen on eggs of f. buski and f. hepatica

Katayama fever

Drug choice for most trematode

2 intermediate host First: nail 2nd: freshwater fish, crabs or crayfish and aquatic plants

Cholanglocarcinoma

Mimic pulmonary tuberculosis

Flukes Possess primitive digestive tract

Major mode of transmission of Blood dwelling flukes

Adult worms localized to inferior mesenteric veins

Duodenal ulcer

Tissue dwelling flukes 4

Transmitted by: Ingestion of raw or inadequately cook 2nd intermediate host

Sputum