Question

Cutaneous larva migrans caused by which organism?

• A. Strongyloides
• B. Toxocara canis
• C. Ancylostoma braziliense
• D. Necator americanus

Answer 1

The Correct Option is C

Cutaneous larva migrans is a parasitic skin infection associated with the larvae of certain nematodes, specifically a type of hookworm. The condition typically manifests as red, itchy lesions on the skin.

Among the options given:

• Strongyloides: This is a genus of parasitic nematodes, but it's not commonly associated with cutaneous larva migrans. Rather, Strongyloides species are known to cause strongyloidiasis, which can affect both the gastrointestinal tract and the skin in humans.
• Toxocara canis: This parasite is indeed a nematode but it is primarily associated with visceral larva migrans and ocular larva migrans rather than cutaneous larva migrans.
• Ancylostoma braziliense: This is the one most famously associated with cutaneous larva migrans. The larvae penetrate the skin, particularly when humans come into contact with contaminated soil.
• Necator americanus: This is another species of hookworm, but it typically causes different symptoms and is not the primary cause of cutaneous larva migrans.

Therefore, the correct answer is Ancylostoma braziliense, as it is the organism most commonly responsible for cutaneous larva migrans.