What are the microscopic features of fibroadenoma?

Microscopically, fibroadenoma contains benign glandular spaces within a fibrous supporting tissue pattern. The supporting tissue surrounds and shapes the ducts and lobules, creating the characteristic mixed appearance. A pathologist interprets this pattern alongside the clinical examination and imaging rather than relying on one feature in isolation.

A benign fibroadenoma result means the sampled tissue has the expected non-cancerous structure. Reports may describe the relationship between the ducts and the surrounding stroma, or mention whether the sample is limited. Some lesions have overlapping features with other fibroepithelial growths, so the report may recommend correlation with the scan and the size or behavior of the lump.

Ask the clinician to explain the exact wording and whether the pathology matches the imaging. A [Breast Biopsy](/treatments/diagnostics-and-imaging/breast-biopsy/) samples tissue, while [Breast Ultrasound](/treatments/diagnostics-and-imaging/breast-ultrasound/) helps assess the lump as a whole. If the lump is large, symptomatic, growing, or not fully explained by the sample, [Breast Lump Excision](/treatments/breast-care/breast-lump-excision/) may be discussed.

Contact your care team if the lump enlarges after the biopsy, a new lump appears, or the breast develops increasing redness, warmth, drainage, or pain. Seek prompt attention for fever with a hot, painful breast. A benign pathology result applies to the tissue examined, so new or discordant changes still deserve review.

Ask whether the sample is sufficient, whether the imaging and pathology agree, and what follow-up is planned. Clarify which words in the report describe the ducts, stroma, or any feature that changes management.