A 25-year-old female has a self-detected tumor in the upper outer quadrant of her right breast. On palpation there is a painless, firm, mobile lump up to 2 cm in diameter, peripheral lymph nodes are not changed. In the upper outer quadrant of the right breast ultrasound revealed a massive neoplasm with increased echogenicity sized 21x18 mm. What is the most likely diagnosis?

Answer options

1. Mammary cancer
2. Lactocele
3. Fibroadenoma
4. Mastitis
5. Diffuse mastopathy

Explanation

Fibroadenomas usually arise in the fully developed breast between the ages of 15 and 25 years, although occasionally they occur in much older women. They arise from hyperplasia of a single lobule and usually grow up to 2–3 cm in size. They are surrounded by a well-marked capsule and can thus be enucleated through a cosmetically appropriate incision. A fibroadenoma does not require excision unless associated with suspicious cytology, it becomes exceptionally large or the patient expressly desires the lump to be removed. Even if clinically obvious, a biopsy should be obtained if the patient is over 25 or there are any atypical features on ultrasound. Bailey & Love’s short practice of surgery. – 27th edition. – P. 870.