Derm: Sebaceous cysts: Free MSRA Podcast

⚕️ FREE MSRA PODCAST – Sebaceous Cysts🎧 A clear, high-yield breakdown of these common benign skin lumps – ideal for clinical recognition and MSRA prep!🧠 Key Learning Points📌 Definition• Sebaceous cysts (often epidermoid or pillar cysts) are non-cancerous, subdermal lumps• Typically filled with keratin or sebum and found under the skin📌 Causes & Risk Factors• Blocked hair follicles or sebaceous glands• Minor trauma, acne, hormonal changes• Risk factors: oily skin, family history, acne• 🧬 Gardner Syndrome: multiple early-onset cysts + bowel polyps + osteomas = RED FLAG📌 Pathophysiology• Blocked duct or follicle → buildup of keratin/sebum• Forms a closed sac → enlarges over time• Infection can occur → cyst becomes red, tender, swollen📌 Symptoms• Painless, mobile, dome-shaped lump• Common sites: scalp, face, neck, back• Central punctum often visible• If ruptured: foul-smelling cheesy material🧠 Mnemonic: PCP – Painless, Cheesy, Punctum📌 Differential Diagnosis• Lipoma: soft, deep, larger• Neurofibroma: firm, multiple → consider NF1• Abscess: red, hot, fluctuant• Gardner’s syndrome: multiple facial/extremity cysts in young📌 Diagnosis• Clinical – based on appearance and history• Ultrasound if deep or suspicious• MRI for scalp cysts or if intracranial extension suspected• Excision biopsy if atypical or growing fast🚫 Fine needle aspiration NOT usually needed📌 Management• No treatment needed if asymptomatic• If infected: incision & drainage + antibiotics• Definitive treatment = surgical excision→ Must remove entire cyst capsule to prevent recurrence• Always send excised cysts for histology🧠 Mnemonic: SEC – Symptomatic, Esthetic, Complicated📌 Complications• Infection → abscess• Rupture → inflammation, recurrence• Scarring post-excision• Rare: intracranial extension (especially with scalp cysts)📌 Prognosis• Excellent with full excision• Recurrence rare if capsule removed completely• Malignant transformation is extremely rare📎 More MSRA Resources for Sebaceous Cysts📝 Revision Notes:https://www.passthemsra.com/topic/sebaceous-cysts-revision-notes/🧠 Flashcards:https://www.passthemsra.com/topic/sebaceous-cysts-flashcards/💬 Accordion Q&A Notes:https://www.passthemsra.com/topic/sebaceous-cysts-accordion-qa-notes/🚀 Rapid Quiz:https://www.passthemsra.com/topic/sebaceous-cysts-rapid-quiz/🧪 Topic Quiz:https://www.passthemsra.com/quizzes/sebaceous-cysts/🎓 Full Course:https://www.passthemsra.com/courses/dermatology-for-the-msra/#MSRA #MSRARevision #MSRATextbook #MSRAQuiz #MSRAQuestionBank #MSRAFlashcards #MSRAQandANotes #MSRAAccordions #MultiSpecialityRecruitmentAssessment #MSRAOnlineRevision #SebaceousCysts #Dermatology