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  1. 1. Introduction Most common benign tumor of breast Benign tumors that represent a hyperplastic or proliferative process in a single terminal ductal unit Young females:15 -25yrs of age
  2. 2.  Aberration in normal development of a lobule Cause -unknown. 10% of disappear spontaneously each year Most stop growing after they reach 2-3 cm.
  3. 3.  involute in postmenopausal women- coarse calcifications develop. Conversely grow rapidly during pregnancy, HRT or immunosuppression-(multiple or growing fibroadenomas -related to Epstein barr virus infn)
  4. 4. Variants - juvenile fibroadenomas - myxoid fibroadenomas- Carney complex, an autosomal dominant neoplasia syndrome (skin mucosal lesions, myxomas, and endocrine disorders.)
  5. 5. TypesGross- Soft Hard GiantMicroscopy- Intracanalicular-mainly cellular tissue Pericanalicular-mainly fibrous
  6. 6. Gross
  7. 7. Intracanalicular
  8. 8. Pericanalicular
  9. 9. Clinical featuresPainless swellingSmooth, firm, non-tenderWell-localizedMoves freely within the breast tissue- breast mouse.Axillary LN not enlarged.
  10. 10. InvestigationsMammographyFNACUSG
  11. 11. Mammogram
  12. 12. Cytology
  13. 13. USG
  14. 14. TreatmentExcision of the lumpIn pericanalicular type- periareolar incisionIntracanalicular-submammary incision
  15. 15. ComplicationsRarely, sarcomatous change
  16. 16. Thank you…