ENT: Multiple Endocrine Neoplasia: Free MSRA Podcast

✅ MSRA Deep Dive: Multiple Endocrine Neoplasia (MEN) – A Complete Revision GuideIn this focused episode, we unpack the full set of MSRA revision notes on Multiple Endocrine Neoplasia (MEN). From the three Ps of MEN1 to the aggressive MTC in MEN2B, we simplify the core knowledge you need for exam success — including genetics, clinical features, investigations, and high-yield management strategies.🧠 Key Learning Points📌 Definition & Overview• MEN refers to inherited syndromes causing tumours in multiple endocrine glands• Three types: MEN1, MEN2A, and MEN2B — each with distinct features• Tumours often functional, leading to hormone overproduction and systemic effects📌 Genetics & Risk• MEN1 = MEN1 gene mutation on chromosome 11q13• MEN2A & 2B = RET proto-oncogene mutations on chromosome 10q11.2• Inherited in an autosomal dominant fashion (50% risk to offspring)• Family history = key risk factor• Genetic screening crucial for early detection in at-risk relatives📌 MEN1 – “3 Ps”• Parathyroid (hypercalcaemia) – 95%• Pancreas (e.g., insulinomas, gastrinomas → Zollinger-Ellison syndrome)• Pituitary (e.g., prolactinomas, acromegaly)• Skin signs: angiofibromas, collagenomas• Recurrence after surgery is common📌 MEN2A vs MEN2B – Key Differences• Both involve:Medullary thyroid carcinoma (MTC)Phaeochromocytoma (PCC)• MEN2A:Later onset (30s–40s), less aggressiveMTC + PCC (30–50%) + hyperparathyroidism (20%)• MEN2B:Early onset (childhood), very aggressive MTCDistinct features:Marfanoid habitusMucosal neuromas (lips, tongue)Intestinal ganglioneuromatosisDelayed puberty📌 Investigations• Genetic testing: MEN1 and RET mutation analysis• Biochemistry:High calcium & PTH (MEN1)High calcitonin & CEA (MTC)24hr urine catecholamines/VMA (PCC)• Imaging:MRI/CT for adrenal & pituitary tumoursThyroid US ± FNAMIBG for PCC localisation📌 Management• MEN1:Individualised: parathyroidectomy, pituitary tumour treatment, PPI for gastrinomasConsider pancreatic tumour surgery based on malignancy risk• MEN2A:Total thyroidectomy, even if asymptomatic, often in teensPCC → bilateral adrenalectomy after alpha blockade• MEN2B:Prophylactic thyroidectomy in very young children or infantsAggressive MTC demands early action• All types:Lifelong hormone replacement post-surgeryMultidisciplinary team (MDT) approachRegular surveillance: calcitonin, CEA, calcium, imagingGenetic counselling for families📌 Prognosis & Complications• Prognosis depends on type & timing of diagnosis• MEN2B = worse due to early, aggressive MTC• Complications:Tumour recurrence or spreadHormone-related crisesLong-term endocrine deficiencies• Lifelong monitoring is essential🔗 Multiple Endocrine Neoplasia Resources for MSRA Revision📄 Notes: https://www.passthemsra.com/topic/multiple-endocrine-neoplasia-revision-notes-2/💬 Flashcards: https://www.passthemsra.com/topic/multiple-endocrine-neoplasia-flashcards-2/🧠 Q&A Notes: https://www.passthemsra.com/topic/multiple-endocrine-neoplasia-accordion-qa-notes/📝 Quiz: https://www.passthemsra.com/topic/multiple-endocrine-neoplasia-rapid-quiz/🎓 Course: https://www.passthemsra.com/courses/ent-for-the-msra/🎯 Quiz Portal: https://www.passthemsra.com/quizzes/multiple-endocrine-neoplasia/🏷️ Hashtags#MSRA #MEN #MEN1 #MEN2A #MEN2B #MedullaryThyroidCancer #ZollingerEllison #Phaeochromocytoma #MSRAQuestionBank #MSRAFlashcards #PassTheMSRA #FreeMSRA #MSRAOnlineRevision #EndocrinologyMSRA