CUTANEOUS LARVA MIGRANS

By Gary M. White, MD

Cutaneous larva migrans also known as creeping eruption


Cutaneous larva migrans (also known as creeping eruption) is a characteristic eruption that is caused by penetration and migration in the skin of nematode larvae. In the US, Acnylostoma caninum or A. braziliensis (dog or cat hookworm) is common.

Clinical

An inflamed, red, linear, worm-shaped lesion is seen. The foot is a common location.

Treatment

Ivermectin 200 micrograms/kg as a single oral dose is the treatment of choice and may be given to both adults and children. In one study of 59 patients from Europe, 95% cleared with one dose of 200 ug/kg ivermectin.    Topical thiobendazole (the oral suspension or a 10-15% cream) applied QID is effective within days.

Albendazole 400 mg as a single dose has also worked well. Excision the advancing tip may also be done, but the parasite may be missed. In many cases, the disease is self-limited as the parasite will die because the human is not an appropriate host.

Additional Pictures

Cutaneous larva migrans also known as creeping eruption Cutaneous larva migrans also known as creeping eruption

Cutaneous larva migrans also known as creeping eruption Cutaneous larva migrans also known as creeping eruption

Cutaneous larva migrans also known as creeping eruption Cutaneous larva migrans also known as creeping eruption

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