Breast disease in adolescents and young women.

Breast lesions, including mastalgia; benign proliferative changes; and benign masses, including fibroadenomas, are common in adolescents and young adult women. Breast cancer is rare in women less than 20 years old and uncommon in women less than 30 years old. Discrete masses in women less than 30 years old that do not feel suspicious on examination can be observed for 1 or 2 months. If they persist, than an FNA can differentiate those that are benign and can be observed versus those that need either an excisional biopsy or definitive surgery. Mammography has little role in the diagnosis of women less than 30 years old except in those individuals with highly suspicious lesions on examination.