Derm: Discoid eczema: Free MSRA Podcast

⚕️ FREE MSRA PODCAST – Discoid Eczema (Nummular Eczema) Essentials🪙 Unpack the coin-shaped conundrum! High-yield revision for exams and UK clinical practice – spot, diagnose, and manage discoid eczema with confidence.🧠 Key Learning Points📌 Definition• Discoid (nummular) eczema: chronic inflammatory skin condition• Distinctive coin-shaped, well-demarcated, itchy, scaly patches – usually on limbs• Not typically found on the face/scalp; may ooze, crust, or become infected📌 Causes & Risk Factors• Multifactorial: genetics, barrier dysfunction, immune hypersensitivity• Major risk: dry skin, atopic background, contact with irritants, trauma• Associated with: chronic alcoholism (especially in men >50), venous insufficiency, cold/dry weather• Rarely, post-hepatitis C treatment📌 Pathophysiology• Leaky skin barrier: water loss (dryness), irritants/allergens get in• Triggers inflammation and classic coin-shaped patches📌 Epidemiology• ~2/1,000 people, peaks: men 50–65 & women 15–25• Rare in children; recurs often📌 Clinical Features• Well-demarcated, round/oval red plaques• Intense pruritus (worse at night)• May start as small bumps/vesicles that coalesce• Golden crust → think secondary infection (Staph aureus)• Central clearing = can mimic ringworm📌 Differential Diagnoses• Tinea corporis (fungal): raised border, active edge• Other eczema types: atopic (flexures), asteatotic (dry, cracked), contact (follows exposure), lichen simplex (no clear edge), stasis dermatitis (venous features), psoriasis (silvery scale/extensors)📌 Diagnosis• Clinical – history + exam• Swabs for suspected infection• Fungal scraping if tinea suspected• Biopsy rarely, for unclear or atypical cases📌 Management• Emollients: liberal, consistent use for barrier repair• Topical corticosteroids (potency as needed)• Antibiotics for infection (oral/topical as needed)• Antihistamines for itch (esp. sedating at night)• Tar preps for thick plaques; phototherapy for chronic cases• Specialist care: immunosuppressants only for severe, resistant flares• Mnemonic: HASTE – Hydration, Antibiotics, Steroids, Tar, Environment (triggers/irritants)📌 Prognosis• Chronic, relapsing: focus on ongoing skin care• Most controlled with diligent moisturising• Complications: infection, scarring, lichenification, pigmentation changes, psychosocial impact📎 More MSRA Resources for Discoid Eczema📝 Revision Notes: https://www.passthemsra.com/topic/discoid-eczema-revision-notes/🧠 Flashcards: https://www.passthemsra.com/topic/discoid-eczema-flashcards/💬 Accordion Q&A: https://www.passthemsra.com/topic/discoid-eczema-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/discoid-eczema-rapid-quiz/🧪 Topic Quiz: https://www.passthemsra.com/quizzes/discoid-eczema/🎓 Dermatology Course: https://www.passthemsra.com/courses/dermatology-for-the-msra/🌍 Explore 1,000s more free & premium revision tools at:👉 https://www.passthemsra.com#MSRA #DiscoidEczema #NummularEczema #Dermatology #MSRAFlashcards #MSRAQuiz #MSRAQandANotes #MSRAAccordions #MSRARevisionNotes #MSRATextbook #MSRAOnlineRevision #PassTheMSRA #FreeMSRA