🎧🎀MSRA DEEP DIVE:Breast Cancer — High-Yield Revision Breakdown
Welcometo today’s comprehensive Deep Dive — we’re unpacking Breast Cancer, one of the most tested and high-yield topics foryour MSRA exam. 🚀
🔑Core MSRA RevisionSummary
📌Definition
• Malignant tumouroriginating in breast ducts (ductal carcinoma)or lobules (lobular carcinoma)
• Divided into in situ (DCIS) or invasive subtypes
• Includes Paget’s disease (nipple involvement) & inflammatory carcinoma (red, swollen breast)
📌Causes & RiskFactors
• Age(⬆ risk after 50)
• Family history(first-degree relative = ↑ risk)
• BRCA1/2 mutations (up to 85% lifetime risk)
• Hormonal exposure:early menarche, late menopause, nulliparity, delayed childbirth, HRT, COCP
• Obesity(postmenopause), sedentary lifestyle, Western diet, alcohol
• Radiation exposure(esp. chest irradiation)
• ✅ Breast implants do NOT increase risk
📌Pathophysiology
• DNA mutations →abnormal cell growth → invasion of surrounding tissue → lymphovascular spread →metastasis
• Lymph node(axilla) & distant spread (bone, liver, lungs, brain)
📌DifferentialDiagnosis
• Fibroadenoma
• Cysts
• Fibrocysticchanges
• Abscess / Mastitis
• Fat necrosis
📌Epidemiology (UKdata)
• Most common cancer in the UK (15% of all cancers)
• ~50,000 new femalecases/year
• 99% in females;male breast cancer rare but worse prognosis
• Upper outerquadrant = most common site
• Lower incidence inmost socioeconomically deprived areas
📌Symptoms & RedFlags
• Painless breastlump
• Nipple changes:inversion, discharge (esp. blood-stained)
• Skin changes:dimpling, peau d'orange, redness
• Axillary lump
• Metastatic signs:bone pain, jaundice, breathlessness, lymphedema, weight loss, night sweats
📌Screening
• NHS screening:women aged 50-70 (mammography)
• Less effectiveunder 40 (dense breast tissue)
📌Investigations:Triple Assessment (EIB)
1️⃣Examination
2️⃣Imaging: Mammogram (>40), Ultrasound (<35), MRI(select cases)
3️⃣Biopsy: Core biopsy (preferred), FNA for lymph nodes
• Also: ER, PR, HER2receptor testing + Ki-67 proliferative index
• Staging: AxillaryUS, CT, bone scan, PET-CT
• TNM staging used
• NICE 2-week waitreferral criteria highlighted
📌Management (SRSApproach)
🩺Surgery:
• Lumpectomy (widelocal excision) or Mastectomy
• Sentinel nodebiopsy / axillary clearance
💡Radiotherapy:
• Post-lumpectomy orfor local control
💊Systemic Therapies:
• Chemotherapy: Neoadjuvant/adjuvant
• Hormonal Therapy: Tamoxifen, AromataseInhibitors (ER/PR+)
• Targeted Therapy: Trastuzumab (HER2+), PARPinhibitors (BRCA), Pembrolizumab (triple negative)
• Genomic testing: Oncotype DX, EndoPredict,PREDICT tool for personalised treatment
• Bisphosphonates: Bone protection
📌Prognosis
• Early stage = excellent prognosis
• 10-year survival~76% (UK) — doubled over 50 years
• Survival best in55-64 age group
• Male prognosispoorer (often later diagnosis)
📌Complications
• Local recurrence
• Metastasis: Bone, liver, lungs, brain
• Treatment sideeffects: chemo (fatigue, infection), radiotherapy (skin reaction), hormonal(hot flushes, joint pain), lymphedema
• Emotional impact:anxiety, depression, body image issues
• Menopausalsymptoms: non-hormonal management options highlighted (SSRIs, clonidine)
📚Extra MSRA RevisionResources
📝 Revision Notes:
https://www.passthemsra.com/topic/breast-cancer-revision-notes/
🧠 Flashcards:
https://www.passthemsra.com/topic/breast-cancer-flashcards/
💬 Accordion Q&A:
https://www.passthemsra.com/topic/breast-cancer-accordion-qa-notes/
🚀 Rapid Quiz:
https://www.passthemsra.com/topic/breast-cancer-rapid-quiz/
🎓 MSRA Obs + Gynae Course:
https://www.passthemsra.com/courses/obstetrics-and-gynaecology-for-the-msra/
🎯 Extra Quiz:
https://www.passthemsra.com/quizzes/breast-cancer/
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