Can all fibroadenomas (detected w/ultrasound) be confirmed w/needle biopsy, or do some need to be removed completely for biopsy if it's too small?

Breast Fibroadenoma?: Breast Fibroadenoma is a benign condition and can be monitored without biopsy or removal unless it shows growth in size. You should check your breast once monthly for any change in size and also have your doctor do a breast examination every 6 to 12 months. Most fibroadenoma do not grow or may regress on their own as you grow older.

If a potential : fibroadenoma, or any lesion, is detectable on ultrasound, it can generally be needle biopsied with US guidance. Surgery to confirm a fibroadenoma is rarely necessary. Moreover, needle biopsy is usually not necessary. If a potential fibroadenoma fulfills certain imaging criteria making it highly probable that it is benign, short interval follow up may be appropriate rather than biopsy.