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41 Cards in this Set

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Taenia solium
undercooked pork, larvae cause mass lesions in brain - cystercercosis, calcification
larvae also seen in muscles- seizures, myositis
echinococcus
eggs in dog feces--> cysts in liver, causes anaphylaxis if echinococcal antigens are released from cysts
schistosoma
snail are host (freshwater), cercariae penetrate skin of humans, causes granulomas, fibrosis, and inflammation of spleen and liver
clonorchis
undercooked fish, causes inflammation of biliary tract
paragonimus westermani
undercooked crab meat, causes inflammation and secondary bacterial infection of the lung
tx for schistosoma, clonorchis, and paragonimus
Praziquantel
tx for taenia solium
praziquantel, albendazole
echinococcus tx
albendazole
ancylostoma
larvae penetrate skin of feet; intestinal infection can cause anemia; fe deficiency
ascaris
eggs visible in feces, intestinal infection; in 1/3 of the world
enterobius
food contaminated with eggs, intestinal infection, causes anal pruritis (most common worm in US), scotch tape test
strongyloides
larvae in soil penetrate the skin, intestinal infection; life cycle similar to ascaris
tx for ancylostoma, ascaris, enterobius
mebendazole/pyrantel pamoate
tx for enterobius
mebendazole, PP
tx for strongyloides
ivermectin/thiabendazole
wuchereria bancrofti
female mosquito; causes blockage of lymphatics (elephantiasis); tx with diethylcarbamazine
bladder cancer in 3rd world countries
schistosoma hematobium
hookworm
ancylostoma
roundworm
ascaris
trichinella
from undercooked meat, causes muscle inflammation and periorbital edema
entamoeba histolytica
causes amoebiasis, blood diarrhea, liver abscess, RUQ pain; from cysts in water
tx of entamoeba, giardia, trichomonas
metronidazole
giardia
causes bloating, flatulence, foul-smelling diarrhea (campers, hikers), from cysts in water
toxoplasma gondii
causes brain abscesses in HIV, birth defects, ring enhancing lesions; cysts from pork or cat feces
tx: sulfadiazine, pyrimethamine
most common malariae
Plasmodium vivax and falciparum
Malaria disease
cyclic fever, headache, anemia, splenomegaly
treatment of malaria
chloroquine and primaquine (esp with PV and PO relapse), sulfadoxine and pyrimethamine, mefloquin, quinine and doxycycline
malaria form that causes fevers and chills
merozoite
replicating malaria
shizont
PF gametes
banana shaped
trichomonas
foul smelling, greenish discharge, itching and burning, sexual tramsition; motile trophozoites on wet mount with flagella
T. cruzi
Chagas- dilated cardiomyopathy, megacolon, megaesophagus
Frum reduviid bug
African sleeping sickness
from tsetse fly, treat with suramin for blood borne disease or melarsoprol for CNS penetration
Leischmania donovanii
visceral leishmaniasis, infects liver and spleen; from the sandfly but dogs are resevoir; tx with sodium stibugluconate
babesia
causes fever and anemia (like malaria), from ixodes tick (Lyme disease), maltese cross; tx with quinine and clindamycin
most common protozoal infectoin
giardia/trichomonas
erythrocyte ingested trophozoite
entamoeba histolytica
malaria stage that looks like a diamond ring
trophozoite
malaria stage that ruptures the host cell
merozoite
malaria stage that replicated intracellularly
shizont
malaria stage injected from anopheles mosquito
sporozoite