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31 Cards in this Set
- Front
- Back
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elephantiasis
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wucheria bancrofti, brugia malayi, brugia timori (filariasis)
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periorbital edema
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trichinella spiralis
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mosquito bite
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wucheria bancrofti, brugia malayi, brugia timori (filariasis); -> elephantiasis
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black fly bite
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onchocerca volvulus
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blindness associated with fast-moving streams
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onchocerca volvulus
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most common helminth worldwide
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ascaris lumbricoides
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hydatid cyst
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echinococcus granulosis
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most common helminth in the US
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enterobius vermicularis (pinworm)
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endemic in TN; larvae in soil penetrate skin
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strongyloides stercoralis
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biliary inflammation, scarring, obstruction; no eosinophilia
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clonorchis and opistorchis (liver flukes); from undercooked fish -> duodenum -> ampulla of Vater -> eggs in stool -> invade snails -> mature and then penetrate skin of fish;
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"ground itch" and anemia
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ancylostoma and necator (hookworm)
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perianal pruritus
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enterobius vermicularis (pinworm)
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symmetrical liver mass
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echinococcus granulosis
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dogs are the definitive hosts
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echinococcus granulosis (hydatid cyst disease)
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ingestion of poorly cooked beef muscle
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taenia saginata
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intestinal and biliary obstruction; eosinophilia
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ascaris lumbricoides (giant roundworm)
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Gram-negative sepsis and meningitis
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strongyloides stercoralis
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undercooked fish
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clonorchis and opistorchis (liver flukes)
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undercooked pork
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taenia solia
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undercooked beef
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taenia saginata
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encysted larvae in undercooked meat -> excystation and development in intestine -> release of larvae -> migration to skeletal muscle
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trichinella spiralis
(widely distributed in carnivorous animals, including US) |
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ova ingested -> adults in cecum -> come out to perianal region at night to lay eggs
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enterobius vermicularis (pinworm; US)
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ingest food contamined by eggs, larvae hatch in intestine, invade tissues and encyst as fluid-filled sac
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taenia solium (pork tapeworm)
(worldwide) |
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ova ingested -> break walls of intestine -> veins -> lungs -> small intestine -> ova in stool
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ascaris (giant roundworm)
(tropical, subtropical) |
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undercooked fish -> bile duct -> snail -> fish
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opistorchis and clonorchis (liver flukes; not in US; China/Asia/Russia)
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blackfly bite -> superficial CT
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onchocerca volvulus
(not in US; Africa, fast streams) |
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larvae pentrate skin -> veins -> lungs -> hatch in small intestine -> release ova that either (a) hatch & invade again or (b) pass in stool
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strongyloides stercoralis
(endemic in TN) |
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larvae from snail penetrate skin in fresh water -> liver -> portal vessels -> either (a) GI or (b) bladder
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schistosomiasis (blood fluke)
(travellers can bring to US) |
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larvae penetrate skin -> veins -> lungs -> upper small intestine -> eggs passed in stool
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ancylostoma duodenale and necator americanus (hookworm)
(worldwide) |
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mosquito bite -> lymphatics -> blood
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filiarisis (wucheria, brugia)
(not in US; tropics/subtropics) |
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eat food contamined by eggs -> hatch -> mesenteric vessels -> liver & lungs
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echinococcus granulosis (hydatid cyst)
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