Inf: Cutaneous Larva Migrans: Free MSRA Podcast

⚕️ FREE MSRA PODCAST – Cutaneous Larva Migrans🎧 A focused, high-yield breakdown of this travel-related parasitic skin condition – essential for MSRA prep and clinical awareness!🧠 Key Learning Points📌 Definition• A parasitic skin infection caused by hookworm larvae from animals (usually dogs/cats).• Larvae penetrate human skin but can’t complete their life cycle, causing visible, migrating skin tracks.📌 Causes & Risk Factors• Ancylostoma braziliense and Ancylostoma caninum (animal hookworms)• Risk factors: – Walking barefoot on contaminated sand/soil – Contact with stray animals – Travel to tropical/subtropical regions💡 Mnemonic: “BITE” – Barefoot, Infection source (animal), Travel, Exposure to sand📌 Pathophysiology• Larvae penetrate epidermis but can’t mature in humans• They migrate horizontally in skin, causing inflammation and intense itching• They eventually die off in weeks if untreated📌 Symptoms• Serpiginous (snake-like), red, itchy tracts• Most often on feet, buttocks, hands, or exposed areas• Track moves up to 2 cm/day• Burning/tingling at the entry site💡 Mnemonic: “CREEP” – Curvy Rash, Erythema, Extreme itch, Entry site prickling, Progression (movement)📌 Differential Diagnosis• Scabies• Contact dermatitis• Tinea corporis• Erythema migrans (Lyme disease)• Photodermatitis📌 Diagnosis• Clinical – classic appearance + history (travel, exposure)• Investigations rarely needed• In unclear cases: skin scrapings, biopsy, or optical coherence tomography (OCT) may help📌 Management• Albendazole or ivermectin (short course)• Topical agents (less preferred)• Treat secondary infections (e.g. impetigo) with antibiotics if needed• Prevention: – Avoid barefoot contact – Deworm pets – Use mats/towels on sand💡 Mnemonic: “WARM” – Worm treatment (albendazole), Avoid barefoot, Regular pet care, Mat use📌 Complications• Secondary skin infections from scratching• Rare: ectopic migration (uncommon larval spread beyond skin)📌 Prognosis• Excellent – self-limiting in weeks, but treatment shortens course and relieves symptoms faster📎 More MSRA Resources for Cutaneous Larva Migrans📝 Revision Notes: https://www.passthemsra.com/topic/cutaneous-larva-migrans-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/cutaneous-larva-migrans-flashcards/💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/cutaneous-larva-migrans-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/cutaneous-larva-migrans-rapid-quiz/🎓 Full Course: https://www.passthemsra.com/courses/infectious-diseases-for-the-msra/🧪 Quiz Bank: https://www.passthemsra.com/quizzes/cutaneous-larva-migrans/#MSRA #MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards #MSRAQ&ANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment #MSRAOnlineRevision #MSRARevisionWebsite #InfectiousDiseases #CutaneousLarvaMigrans