Flashcards in Helminth Deck (25)
What are roundworms, tapeworms, flukes called?
What are the nematodes that are transmitted fecal-oral?
What are the nematodes that are transmitted thru the feet/skin?
What is the med used to treat roundworm/nematode infections?
What are the important things to know about enterobius vermicularis?
see e.g. on the tape test
What are the important things to know about ascaris lumbricoides?
eggs visible in feces
can cause intestinal obstruction
goes thru lungs-->Loffler Eosinophilic Pneumonitis
What are the important things to know about trichinella spirals?
eat undercooked meat-pork & it goes into your meat/muscles!
goes into striated muscles, can see cysts
Trichinosis: N/V, fever, periorbital edema, myalgia
What are the important things to know about strongyloides stercoralis?
penetrate feet thru skin
like a peptic ulcer-epigastric pain, diarrhea, vomiting
What are the important things to know about ancylostoma and necator infections?
penetrate skin of foot
hook onto intestines and suck blood from walls
What's the deal with wuchereria bancrofti?
but not involved in GI
involved in lymph-causes elephantiasis or hydrocele
spread by female mosquito
treat w/ diethylcarbamazine
What's the deal with onchocerca volvulus?
female blackfly bite
black flies, black skin nodules, black sight
hyper pigmented skin
What's the deal with loa loa?
swelling in skin, worm in conjunctiva
spread by deer fly, horse fly, mango fly
treat w/ diethylcarbamazine
What's the deal with toxocarna canis?
visceral larva migrans
treated w/ bendazoles
What are the cestodes/tapeworms?
What are the cestodes/tapeworms treated with?
What are the important things to know about taenia solum?
ingest larvae in undercooked pork-->intestinal infection
OR ingest eggs-->cysticercosis (muscles, myositis) OR neurocysticercosis
You have an immigrant who has new onset CNS symptoms?
What are the important things to know about diphyllobothrium latum?
eat larvae from raw freshwater fish
get VitB12 deficiency-->megaloblastic anemia
What are the important things to know about echinococcus granulosus?
eat eggs from dog feces
hyatid cysts in liver
can get anaphylaxis if contents released
What are the trematodes/flukes?
Schistosoma: mansoni, hematobium
What are the important things to know about schistosoma?
snails are host
cercariae penetrate skin
associated w/ swimmer's itch
S. mansoni: LIVER and SPLEEN enlarge. Invades mesenteric vessels. It has a lateral spine.
S. hematobium: URINARY TRACT. squamous cell carcinoma of bladder. hematuria. Egg has terminal spine.
What are the important things to know about clonorchis sinensis?
comes from undercooked fish
biliary tract inflammation-->pigmented gallstones
associated w/ cholangiosarcoma
What are the important things to know about paragonimus westermani?
adult fluke in lung
Egyptian immigrant w/ hematuria?
squamous cell carcinoma