Glossary of Larva Migrans
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- what is larva migrans?
- migration of larval nematodes in unsuitable hosts; larvae are unable to complete life cycles, so host cells destroy them.
- what type of parasites are larva migrans?
- what are the 2 broad categories of larva migrans?
- how many types are of each:
-visceral larva migrans
-cutaneous larva migrans
- visc: 5
- what are the 5 visceral larva migrans?
- what are the 2 cutaneous larva migrans?
- Ancylostoma braziliense
- what are the common names for toxocara canis and cati?
- dog and cat roundworms
- where is toxocara found?
- what are the usual definitive hosts of toxocara?
- dogs, cats, children
- what is a good symptom of toxocara?
- high eosinophilia - granulocytic tumors in fact.
- how is toxocara diagnosed?
- what are the symptoms of toxocara?
-abdom pain, PICA
-eosinophilic granulomas in tissue
-may cause Blindness
- how is dog/cat roundworm treated?
- with thiabendazole or diethyl carbamazine
- what is baylisascaris commonly known as?
- raccoon roundworm
- where is baylisascaris found?
what is the usual definitive host?
- anywhere - especially Midwest!!
Don't know yet
- what are the symptoms of baylisascaris?
- depends upon where the larva migrate.
-loss of vision in adults
-encephalitis in children
- howis baylisascaris treated?
- it can't be - don't let raccoons get in your garbage.
- what organism causes heartworm in dogs?
What vector transmits it?
- Dirofilaria immitis
- What type of symptoms are seen in humans that get heartworm?
- Nodules on arms
Coin lesions in lungs
- What is Anisakiasis?
- infection caused by marine nematodes
- What marine nematodes cause anisakiasis?
- where is anisakiasis seen?
- what causes anisakiasis?
- ingetion of raw/uncooked saltwater fish containing larvae, which burrow in intest, die, and stim eosinophilic granulomas.
- what types of symptoms does anisakiasis causes in humans?
how is it diagnosed?
- nausea and vomiting
- how is anisakiasis treated?
- by surgical removal of the eosinophilic granuloma.
- what is angiostrongylus?
where is it seen geographically?
- an infection caused by ingesting infected SNAILS.
- What is the pathological course of angiostrongylus?
- Larvae are ingested in snails.
Travel to brain.
Cause eosinophilic meningitis
-Charcot Leyden crystals in the brain.
- what are charcot leyden crystals?
- disintegrate eosinophils
- What 2 organisms cause Creeping Eruption and Dermatitis?
- Ancylostoma braziliense
- what are the common names of Ancylostoma braziliense and Ancylostoma caninum?
- Cat or Dog hookworm
- where is Ancylostoma seen?
- in Tropical and Subtropical climates
- what is the life cycle of ancylostoma?
- in dogs/cats: filariform larvae penetrate skin and circulate in blood
in humans: same, but trapped intercutaneously inst. of circulating in blood.
- what are the symptoms of anclystomiasis caused by dog/cat hookworm?
- red itchy papules at penetration
maybe 2dary bacterial infection
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