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?: incidental
what are the 2 broad categories of larva migrans?: -visceral
-cutaneous
how many types are of each: -visceral larva migrans -cutaneous larva migrans: visc: 5
cutan: 1
what are the 5 visceral larva migrans?: Baylisascaris
Toxocara canis/cati
Dirofilaria immitis
Anisakiasis
Angiostrongylus
what are the 2 cutaneous larva migrans?: Ancylostoma braziliense
Ancylostoma caninum
what are the common names for toxocara canis and cati?: dog and cat roundworms
where is toxocara found?: worldwide
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?: -serology
what are the symptoms of toxocara?: -fever
-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

Mosquitos
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?: Anisakis,
Phocanema
Terranova
Contracoecum
where is anisakiasis seen?: Japan
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

by serology
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.
-SE Asia
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
Ancylostoma caninum
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
larvae tunnels
maybe 2dary bacterial infection
self-limiting

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Number of cards 33