Derm: Tinea: Free MSRA Podcast

⚕️ FREE MSRA PODCAST – Tinea (Ringworm)🎧 A high-yield breakdown of this common fungal skin infection – perfect for exams and daily clinical practice.🧠 Key Learning Points📌 Definition• Tinea (ringworm) is a superficial fungal infection caused by dermatophytes, affecting keratinised tissues: skin, hair, or nails.• The name "ringworm" refers to the classic ring-shaped rash – no actual worms involved!📌 Causes & Risk Factors• Caused by dermatophyte fungi: Trichophyton, Microsporum, Epidermophyton• Spread via direct contact (people, animals) or fomites (towels, combs, gym floors)• Risk factors:Warm, moist environments (e.g., communal showers)ImmunosuppressionPoor hygieneTight clothingChildren (especially Tinea capitis)Afro-Caribbean children in urban UK areas → high-yield MSRA point🧠 Mnemonic: “DAMP” – Direct contact, Animals, Moisture, Poor hygiene📌 Pathophysiology• Dermatophytes digest keratin → triggers inflammation• Body reacts → erythema, scaling, itching• Tinea capitis: infects hair shaft → brittle, black dot appearance• Kerion: severe boggy inflammatory mass → urgent dermatology referral📌 Symptoms• Red, scaly, itchy patches• May be ring-shaped (Tinea corporis)• Tinea capitis: scaling + patchy alopecia, black dots, kerion• Nail involvement: thick, brittle, discoloured nails🧠 Mnemonic: “RING” – Redness, Itching, No hair (in scalp), Gritty nails📌 Differential Diagnosis• Alopecia areata (non-scaly)• Seborrhoeic dermatitis• Psoriasis (silvery plaques)• Folliculitis• Eczema• Secondary syphilis (palms/soles + systemic)• Id reaction (autoeczematisation)📌 Diagnosis• Clinical appearance + history• Microscopy (KOH prep) – rapid confirmation• Culture – slower but identifies fungal species• Use scalp scrapings, plucked hairs, or toothbrush sampling🧠 Tip: Keep samples at room temperature – refrigeration kills fungi!📌 Management• Topical antifungals (e.g., clotrimazole) for mild skin cases• Oral antifungals (e.g., terbinafine, griseofulvin) for:Tinea capitisNail involvementWidespread/severe infections• Tinea capitis:Oral treatment is essential (fungus inside the hair shaft)Add antifungal shampoo (e.g., ketoconazole) for 2 weeks to reduce transmissionScreen/treat close contacts & pets• Urgent referral for kerion• Reinforce hygiene: don’t share towels/hats, clean brushes📌 Complications• Secondary bacterial infection (cellulitis)• Chronic skin changes• Spread to other sites or contacts• School outbreaks (esp. tinea capitis)📌 Prognosis• Excellent if treated• Risk of recurrence if risk factors not addressed• Carriers may shed spores without symptoms → contribute to transmission📎 More MSRA Resources for Tinea📝 Revision Notes: https://www.passthemsra.com/topic/tinea-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/tinea-flashcards/💬 Accordion Q&A Notes: https://www.passthemsra.com/topic/tinea-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/tinea-rapid-quiz/🎓 Full Course: https://www.passthemsra.com/courses/dermatology-for-the-msra/#MSRA #MSRARevision #MSRATinea #MSRAFlashcards #MSRAQ&ANotes #MSRAQuiz #TineaCapitis #Ringworm #MSRADermatology #MSRAOnlineRevision #MSRAQuestionBank #MSRAAccordions