Trematodes Flashcards
MOT of Schistosoma japonicum
Cercariae penetrate the skin
Adult schistosomes exist as
Separate sexes
Schistosoma japonicum reside in the
Mesenteric & portal veins
Intermediate host of Schistosoma japonicum
Oncomelania hupensis quadrasi (snail)
Infective stage of Schistosoma japonicum
Cercariae
Diagnostic stage of Schistosoma japonicum
Eggs in feces
via rectal biopsy
Techniques used in the diagnosis of Schistosoma japonicum
Kato-Katz technique &
Circumoral precipitin test
Schistosoma japonicum eggs cause granuloma formation in the liver which can lead to
Presinusoidal obstruction,
Hepatomegaly &
Portal hypertension
aka Oriental blood fluke
Schistosoma japonicum
Systemic hypersensitivity caused by Schistosoma japonicum
Katayama fever
Resembles serum sickness
Schistosoma japonicum evades host defense by
By coating itself with host antigen
Diseases caused by Schistosoma japonicum
Acute disease: -swimmer's itch -katayama fever Chronic disease: -chronic liver disease -portal hypertension
DOC for Schistosoma japonicum infection
Praziquantel
Lung fluke
Paragonimus westemani
Intermediate hosts of Paragonimus westemani
Snail (Antemelania asperata) Mountain crab (Sundathelphusa philippina)