Fibroadenoma is best described as which of the following?

• A. Malignant
• B. Benign
• C. Infectious
• D. Cystic

Answer: (B)

Fibroadenoma is a benign breast tumor. It typically presents in younger women as a small, painless, mobile, well‑circumscribed lump. Its benign nature is suggested by its smooth, defined borders and lack of skin or nipple changes, plus imaging that shows a solid, uniform, oval mass with clear margins. Histologically, it features a fibrous stroma with glandular elements arranged in an orderly, noninvasive way, without cellular atypia. Hormonal influences explain why it may grow during puberty or pregnancy and often stay stable or regress after menopause. Because it behaves in a nonmalignant fashion, management is usually conservative observation or simple excision if it enlarges or causes symptoms. It is not infectious and not cystic, distinguishing it from those types of lesions.