Fibroadenoma

Question 1

What is the pathology of fibroadenoma?

Answer 1

• Developing breast tissue (<25yrs) lobular tissue, units and stroma still formed
• May develop in fibroadenoma

Question 2

How are fibroadenomas classified?

Answer 2

• Juvenile (usually early adolescents)
• Common
• Giant (over 4cm)

Question 3

What is the management of fibroadenomas?

Answer 3

IF
1. Young (<25yrs) and small fibroadenomas (<3cm on imaging) = WATCHFUL WAIT w/o biopsy

2. Over 4cm on imaging = BIOPSY
   - Need to exclude phyllodes tumour

Bigger lesions = excision
Smaller lesions = mammotome

Question 4

What is the progression of fibroadenomas?

Answer 4

10% = increase in size
30% = regression
60% = remain the same

During pregnancy may increase a lot and sequester milk