Fibroadenoma

Question 1

Define

Answer 1

Benign overgrowth of collagenous mesenchyme of one breast lobule

Question 2

Cause

Answer 2

Formed of a mixture of stromal and epithelial tissue

1/3 regress, 1/3 stay the same, 1/3 get bigger

Question 3

Epidemiology

Answer 3

Common in 15-35 yrs

Question 4

Symptoms

Answer 4

Firm, smooth, rubbery, mobile lump

Painless

May be multiple

Question 5

Signs

Answer 5

Firm, smooth, mobile lump

Question 6

Investigations

Answer 6

Triple assessment

Imaging will show oval or round, circumscribed lump, may have coarse calcifications

Biopsy will show epithelial and stromal elements

Question 7

Managamenet

Answer 7

• Observation and reassurance – usually no treatment needed
• If in doubt refer for USS ± FNA
• If large or growing quick/causing discomfort/preferred by patient, surgical excision done by excisional biopsy.

Question 8

Complications / Prognosis

Answer 8

rare

Benign with usually no treatment needed

1/3 regress, 1/3 stay the same, 1/3 get bigger