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19 Cards in this Set
- Front
- Back
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Intestinal nematodes
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Ascaris lumbricoides
Enterobius vermicularis Strongyloides stercoralis |
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Tissue Cestodes - larval
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Cysticercosis - from Taenia solium
Echinococcosis - from Echinococcus granulosis |
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Ascaris lumbricoides look like
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Long worms (15-30 cm) cyclindrical
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Ascaris lumbricoides life cycle
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Eggs enter mouth.
Egg hatch in small intestine Larvae spread via portal circulation. Infect the lung, liver |
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Ascaris lumbricoides symptoms
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can cause: eosinophilia, pneumonitis with wheezing, fever, dyspnea, nutritional deficiencies.
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Ascaris lumbricoides treatment
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Mebendazole
Pyrantel pamoate Albendazole |
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Enterobius vermicularis looks like
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A small round worm.
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Enterobius vermicularis life cycle
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Eggs shed on perianal folds, eggs are ingested, larvae hatch in small intestine, adults are found in cecum, gravid females migrate to perianal region to lay eggs
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Enterobius vermicularis symptoms
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pruritis of the butt. worms may migrate to vagine - mucoid discharge
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Enterobius vermicularis treatment
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Pyrantel pamoate or mebendazole kills adult worms. Treat again 2-3 weeks later to kill worms from eggs ingested later.
Family wide treatment. |
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Strongyloides stercoralis looks like
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very small round worms 2mm long
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Strongyloides stercoralis found:
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in the soil in the south! Don't walk barefoot!
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Types of strongyloides stercoralis disease:
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Cutaneous, pulmonary, intestinal.
Cutaneous: mild symptoms, some pruritis. Pulmonary: Mild symptoms unless lots are present Intestinal: asymptomatic unless lots. |
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Strongyloides steroralis treatment
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Thiabendazole.
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Taenia solium infection
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Adult- tapeworm, only found in man
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Life cycle of Tenae soli (cysticercosis)
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Adult tapeworms live in human intestine, eggs passed through feces, pigs eat eggs, cycticerci develop in muscle of pigs, we eat undercooked pork and get tapeworms.
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Cysticerci in humans
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comes from eating tapeworm eggs, cysticerci develop in muscle, brain, eye, skin much lik it does in the pig
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Diagnosis of neurocyticercosis
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Serology - immunoblot.
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Echinococcus granulosus life cycle
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Definitive host - dogs, intermediate host- sheep, goats, pigs. Dogs eat livestock, livestock eats dog poop. big deal in the middle east where viscera are fed to dogs.
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