Derm: Livedo reticularis: Free MSRA Podcast

🩺 FREE MSRA PODCAST – Livedo Reticularis: The Clue Beneath the SkinGet the high-yield facts on livedo reticularis: the net-like, purplish skin pattern that can be a signpost to something much deeper. Perfect for your MSRA revision.Key Learning Points🔎 Definition• Livedo reticularis is a vascular pattern: mottled, net-like purplish discolouration of the skin• Most visible on limbs, worsens with cold⚖️ Causes• Primary (idiopathic): Benign, no underlying disease• Secondary: Linked to serious conditions (systemic lupus erythematosus, antiphospholipid syndrome, polyarteritis nodosa, cryoglobulinaemia, vasculitis, medications, cold, clotting disorders)🧬 Pathophysiology• Arteriolar constriction/sluggish blood flow leads to deoxygenated blood pooling in superficial venules• Can be due to vessel spasm, inflammation, clots, or abnormal proteins blocking flow🩺 Clinical Features• Lace-like, purplish (sometimes reddish-blue) network on skin• Symmetrical, most common on legs and arms• Pattern accentuated by cold; may fade with warmth• No pain/itch unless underlying disease🧠 Mnemonic: “NET CLASP” for CausesN: None (idiopathic)E: Endocrine/autoimmune (SLE)T: Thrombotic (APS)C: ColdL: Lupus/vasculitisA: Antiphospholipid syndromeS: Systemic diseasesP: Polyarteritis nodosa/Proteins (cryoglobulinaemia)🧪 Differential Diagnoses• Cutis marmorata (transient in infants)• Acrocyanosis (bluish extremities, no net pattern)• Livedoid vasculopathy (painful, ulcerative)• Embolic phenomena (acute, localised changes)🔬 Diagnosis• Clinical examination of skin pattern• Investigate for secondary causes if red flags: full blood count, autoantibodies (ANA, anti-dsDNA), clotting screen, inflammatory markers• Skin biopsy if uncertain or systemic disease suspected💊 Management• Primary: Reassure, keep warm, protect from cold• Secondary: Treat underlying cause—immunosuppression (e.g., for lupus/vasculitis), anticoagulation (for APS), supportive care• Regular follow-up for systemic disease⚠️ Complications• Primary: Benign, cosmetic only• Secondary: Depends on underlying condition—risk of ulceration, tissue damage, stroke or thrombosis (in APS), organ involvement (vasculitis, lupus)📚 MSRA Revision Resources for Livedo Reticularis📝 Revision Notes: https://www.passthemsra.com/topic/livedo-reticularis-revision-notes/💬 Flashcards: https://www.passthemsra.com/topic/livedo-reticularis-flashcards/🧠 Accordion Q&A: https://www.passthemsra.com/topic/livedo-reticularis-accordion-qa-notes/🚀 Rapid Quiz: https://www.passthemsra.com/topic/livedo-reticularis-rapid-quiz/🧪 Full Quiz: https://www.passthemsra.com/quizzes/livedo-reticularis/🎓 Dermatology Course: https://www.passthemsra.com/courses/dermatology-for-the-msra/🌐 For more free & premium revision resources:https://www.passthemsra.com#MSRA #LivedoReticularis #MSRARevision #DermatologyMSRA #Autoimmune #APS #Lupus #Vasculitis #PassTheMSRA #FreeMSRA #MSRAFlashcards