Presentation
The patient has presented with a right breast painless palpable mass for two years. Previous history of thyroid cancer. No family history of breast cancer.
Patient Data
There is a well-circumscribed mixed-density lesion located in the upper outer quadrant of the right breast (containing both fatty and glandular components), giving a "breast within breast" appearance.
No associated suspicious microcalcifications.
No abnormal skin thickening.
Non-specific right axillary LN with fatty density hilum.
Case Discussion
Breast hamartoma, also known as "fibroadenolipoma", is a benign breast lesion that represents a benign proliferation of fibrous, glandular, and fatty tissue.
The mammogram shows a well-circumscribed, rounded, or oval-shaped mass surrounded by a thin capsule comprising both fat and soft tissue densities, giving the classic appearance of "breast within breast".