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cutaneous larva migrans

A Serpiginous Lesion on the Foot

A Serpiginous Lesion on the Foot

Members of the College of Family Physicians of Canada may claim one non-certified credit per hour for this non-certified educational program.

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Francesca Cheung, MD CCFP, is a family physician with a special interest in dermatology. She received the Diploma in Practical Dermatology from the Department of Dermatology at Cardiff University in Wales, UK. She is practising at the Lynde Centre for Dermatology in Markham, Ontario and works closely with Dr. Charles Lynde, MD FRCPC, an experienced dermatologist. In addition to providing direct patient care, she acts as a sub-investigator in multiple clinical studies involving psoriasis, onychomycosis, and acne.

Abstract
Cutaneous larva migrans is a parasitic infection caused by percutaneous penetration and subsequent migration of the larvae of hookworm. The tracks are commonly raised, erythematous, serpiginous, and pruritic. Cutaneous larva migrans is diagnosed based on its clinical characteristics. It is a self-limiting condition because larvae eventually die in humans without being able to infest new hosts. Treatment is used to shorten the disease course, control the intense pruritus, and prevent the risk of secondary infection. Topical thiabendazole is the treatment of choice for mild and localized condition. Systemic treatment such as albendazole, mebendazole, and ivermectin are used in widespread cases or cases recalcitrant to topical treatment.
Keywords: cutaneous larva migrans, parasitic infection, hookworm, Ancylostoma braziliense, thiabendazole.