Cutaneous larva migrans

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It is a serpiginous (snake-like) skin rash caused by the subcutaneous migration of parasite larvae.

The larvae are introduced into the skin on contact with sand or soil contaminated by cat and dog feces in tropical and subtropical countries.

An itchy red spot appears at the site of entry and within 2-3 days filiform, sinuous, winding, tortuous and reddish tracts are seen in the subcutaneous tissue, advancing a few millimeters per day. They cause intense itching and peeling of the skin.

Diagnosis is made by clinical history and physical examination.

It usually disappears without treatment after 2-8 weeks, although specific drugs may be prescribed.

Bibliographic references
  1. Peter F Weller, Karin Leder. Hookworm-related cutaneous larva migrans. UpToDate. Jul 19, 2016.
  2. Peter F Weller, Karin Leder. Hookworm infection. UpToDate. Jul 01, 2016.
  3. Peter F Weller. Anthelminthic therapies. UpToDate. Apr 30, 2015.
  4. Monsel G, Caumes E. Recent developments in dermatological syndromes in returning travelers. Curr Opin Infect Dis 2008; 21:495.
  5. Kincaid L, Klowak M, Klowak S, Boggild AK. Management of imported cutaneous larva migrans: A case series and mini-review. Travel Med Infect Dis 2015; 13:382.
Author
Dr. Oscar Garcia-Esquirol
Copyright
© TeckelMedical 2026

Symptoms

    Red and itchy skin on the sole of the foot


    Skin lump less than 1 cm / 0.4 inches in diameter - Papule(s)


    Itchy foot


    Itching and pimples on the lower legs - Dermatitis


    Skin alteration

Symptoms to watch out for

Fever (temperature higher than 100.4 ºF)
Difficulty breathing
Cough with blood or pus

Self-care

Antihistamines in syrup or tablet form for itching.
Consult with your primary care physician regarding the prescription of anti-parasitic medication.