Trematodes Flashcards

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1
Q

MOT of Schistosoma japonicum

A

Cercariae penetrate the skin

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2
Q

Adult schistosomes exist as

A

Separate sexes

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3
Q

Schistosoma japonicum reside in the

A

Mesenteric & portal veins

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4
Q

Intermediate host of Schistosoma japonicum

A

Oncomelania hupensis quadrasi (snail)

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5
Q

Infective stage of Schistosoma japonicum

A

Cercariae

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6
Q

Diagnostic stage of Schistosoma japonicum

A

Eggs in feces

via rectal biopsy

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7
Q

Techniques used in the diagnosis of Schistosoma japonicum

A

Kato-Katz technique &

Circumoral precipitin test

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8
Q

Schistosoma japonicum eggs cause granuloma formation in the liver which can lead to

A

Presinusoidal obstruction,
Hepatomegaly &
Portal hypertension

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9
Q

aka Oriental blood fluke

A

Schistosoma japonicum

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10
Q

Systemic hypersensitivity caused by Schistosoma japonicum

A

Katayama fever

Resembles serum sickness

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11
Q

Schistosoma japonicum evades host defense by

A

By coating itself with host antigen

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12
Q

Diseases caused by Schistosoma japonicum

A
Acute disease:
-swimmer's itch
-katayama fever
Chronic disease:
-chronic liver disease
-portal hypertension
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13
Q

DOC for Schistosoma japonicum infection

A

Praziquantel

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14
Q

Lung fluke

A

Paragonimus westemani

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15
Q

Intermediate hosts of Paragonimus westemani

A
Snail (Antemelania asperata)
Mountain crab (Sundathelphusa philippina)
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16
Q

MOT of Paragonimus westemani

A

Ingestion of undercooked crab