Larva Migrans

Diagnosis: Larva Migrans

5 years old Boy. Just arriving from a trip to Can Cun, Mex. I used to treat Larva Migrans whit a single dose of Ivermectina, whit great results.

Clinical Presentation

5 years old Boy. Just arriving from a trip to Can Cun, Mex. I used to treat Larva Migrans whit a single dose of Ivermectina, whit great results.

Clinical History

Submitted by Humberto Cantu Garza. Originally posted October 24, 2012.

Treatment

See case discussion.

Differential Diagnosis

• Larva currens (Strongyloides) • Tinea corporis • Contact dermatitis • Scabies • Phytophotodermatitis • Erythema chronicum migrans

Key Learnings

• Caused by hookworm larvae (Ancylostoma braziliense most commonly) that cannot complete life cycle in humans • Classic presentation: serpiginous, erythematous, pruritic track that advances 1-2 cm/day • Most commonly seen on feet, buttocks, and hands — areas in contact with contaminated soil/sand • Self-limited (larvae die within weeks-months) but treatment shortens course • Travel history to tropical/subtropical regions important • Hookworm-related cutaneous larva migrans is different from visceral larva migrans

Tags: larva, migrans, humberto cantu garza