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Parasitology And entomology > Tissue Nematodes > Flashcards

Flashcards in Tissue Nematodes Deck (13):
0

cutaneous larva migrans is due to...

nematodes belong to animal hookworms (Ancylostoma braziliense, A. caninum and Uncinaria) ,
Stronglyloides spp. (larvae currens) ,
Gnathostoma spp.

1

mode of transmission of subcutaneous larva migrans

penetrate human skin by infective larvae (filariform) in contaminated soil, beach, or sandbox and unprotected foot wear.

2

drug treatment of subcutaneouslarva migrans

oral ; albendazole, ivermectin
topical ; thiabendazole, piperazine
cyrosyrgery

3

visceral larva migran is due to...

ascarids of dogs, cat, pig, and racoon;
▶️ Toxocara canis
▶️ Toxocara cati
▶️ Ascaris suum
▶️ Baylisascaris procyonis

4

mode of transmission of toxocariasis

ingestion of eggs, larva wander in all tissue and organs

5

symptoms of toxocariasis

eosinophilic granulomas (around larva), fibrosis and calcification,
hepatosplenomegaly
fibrotic band in the eye

6

Gnathomiasis cause by....

L3 larvae of Gnasthoma spinigerum & other spp.
man is accidental

7

what os the pathogenesis of Gnasthostomiasis

contaminated water, raw fish, sashimi, poorly cooked chicken, contaminated water (cyclops)

8

what organism causes trichinellosis ...

Trichinella spiralis, and other spp.

9

what is the definitive host for Trichinellis spiralis

rodents and pigs

10

pathogenesis of Trichinellis spp...

larvae penetrate wall and intestine, disseminated through circulatory system, larvae induce muscle fibre cells to nurse cells.

11

Angistrogyliasis cause by......

Angiostrongylus cantonensi, Angiostrongylus malayiensis, Angiostrongylus costaricensis

12

definitive host for Angiostrongylus spp....

rodents, snails, crustaceans, toad