Cutaneous larva migrans

Cutaneous larva migrans
Cutaneous larva migrans
Classification and external resources

Typical "creeping eruption" associated with cutaneous larva migrans
ICD-10 B76.9
ICD-9 126.9
DiseasesDB 3263
eMedicine derm/91 ped/1278
MeSH D007815

Cutaneous larva migrans (abbreviated CLM) is a skin disease in humans, caused by the larvae of various nematode parasites of the hookworm family (Ancylostomatidae). The most common species causing this disease in the Americas is Ancylostoma braziliense.

Colloquially called creeping eruption due to the way it looks, the disease is also somewhat ambiguously known as "ground itch" or (in some parts of the Southern USA) "sandworms", as the larvae like to live in sandy soil. Another vernacular name is plumber's itch. The medical term CLM literally means "wandering larvae in the skin".



These parasites are found in dog and cat feces and although they are able to infect the deeper tissues of these animals (through to the lungs and then the intestinal tract), in humans they are only able to penetrate the outer layers of the skin and thus create the typical wormlike burrows visible underneath the skin. The parasites apparently lack the collagenase enzymes required to penetrate through the basement membrane deeper into the skin.


The infection causes a red, intense itching eruption. The itching can become very painful and if scratched may allow a secondary bacterial infection to develop. The itching will stop after the parasites are dead.


CLM can be treated in a number of different ways:

  • Systemic (oral) agents include albendazole (trade name Albenza) and ivermectin (trade name Stromectol).
  • Another agent which can be applied either topically or taken by mouth is thiabendazole (trade name Mintezol), an anti-helminthic. When taken orally, this medication is known to cause nausea. A topical preparation can be made by mixing the ground pills in vaseline. This mixture can be spread lightly on the lesion and held in place with a plaster. This produces local tissue levels sufficient to kill the parasite without the systemic side effects when taken orally.
  • Topical freezing agents, such as ethyl chloride or liquid nitrogen, applied locally can freeze and kill the larvae (but is often a hit-or-miss proposition).
  • It is recommended to use Benadryl or some anti-itch cream (i.e. Cortizone or Calamine lotion). This will help relieve some of the itch.

See also

Additional images

Cutaneous larva migrans 1.jpg

External links

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Look at other dictionaries:

  • cutaneous larva migrans — 1. larva migrans in the skin, characterized by thin, curving, pruritic lines corresponding to the subcutaneous movements of the parasitic larvae. The usual cause is the cat and dog hookworm, Ancylostoma braziliense, which burrow beneath the skin… …   Medical dictionary

  • Larva migrans — cutanée Classification et ressources externes Nombreux sillons serpigineux de progression lente, caractéristiques de larva migrans cutanée CIM 10 …   Wikipédia en Français

  • Larva Migrans — Signe caractéristique : petit cordon sous cutané, érythemateux, prurigineux, serpigineux, mobile, chronique, ici localisé à un pied. La larva migrans cutanée est une affection dermatologique due à la pénétration dans la peau de larve d un… …   Wikipédia en Français

  • Larva migrans — can refer to:* Cutaneous larva migrans, a skin disease in humans, caused by the larvae of various nematode parasites * Visceral larva migrans, a condition in children caused by the migratory larvae of nematodes * Ocular larva migrans, an ocular… …   Wikipedia

  • Larva migrans cutáneo — 220px Clasificación y recursos externos CIE 10 B76.9 CIE 9 126.9 …   Wikipedia Español

  • Larva migrans — Кожная форма larva migrans МКБ 10 B76.976.9 МКБ 9 126.9126.9 DiseasesDB …   Википедия

  • Larva migrans cutanea — Klassifikation nach ICD 10 B76.9 Hakenwurm Krankheit, nicht näher bezeichnet (Larva migrans cutanea o.n.A.) …   Deutsch Wikipedia

  • Larva migrans — Klassifikation nach ICD 10 B76.9 Hakenwurm Krankheit, nicht näher bezeichnet (Larva migrans cutanea o.n.A.) …   Deutsch Wikipedia

  • Larva migrans — kriechender Ausschlag (m), Dermatomyiasis (f), Larva migrans (f), tropische Dermatitis (f) eng creeping eruption, cutaneous helminthiasis, cutaneous larva migrans …   Arbeitssicherheit und Gesundheitsschutz Glossar

  • Visceral larva migrans — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 13882 ICD10 = ICD10|B|83|0|b|65 ICD9 = ICD9|128.0 ICDO = OMIM = MedlinePlus = eMedicineSubj = ped eMedicineTopic = 2407 MeshID = D007816 Visceral larva migrans is a condition in children… …   Wikipedia

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