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  • Definition: Benign tumours composed of glandular and stromal breast tissue.
  • Most common benign breast tumours in young women, typically aged 15-35 years.
  • Exact cause unknown, but it’s associated with reproductive hormones, especially oestrogen.
  • Increased incidence in women on hormone therapy, especially during post-menopause.
Symptoms & Signs
  • Palpable lump: Firm, smooth, rubbery, and movable with well-defined edges.
  • Usually painless, but can be tender or painful in some cases.
  • Size can change with menstrual cycle, growing larger and more tender.
  • Ultrasound: First-line imaging, especially in women < 40 years. Helps differentiate solid from cystic masses.
  • Biopsy: Core needle or excisional biopsy to confirm diagnosis and rule out malignancy.
  • Mammography: Typically for older women or if there are any atypical features.
  • Observation: Many fibroadenomas remain stable or even shrink over time. Regular monitoring recommended.
  • Surgical excision: Considered if the tumour is large, growing, or causing significant symptoms.
  • Non-surgical treatments: Cryoablation or laser ablation in selected cases.
Key Points
  • Fibroadenomas are benign but need differentiation from malignant breast tumours.
  • They are hormonally responsive and can change in size during menstrual cycles or pregnancy.
  • Regular breast self-examinations are crucial for early detection of any breast lumps.

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