A fat containing, lobulated mass in the right breast of a 55-year-old patient, presenting with a palpable mass on physical examination, is compatible with a BI-RADS 2 lesion and consistent with breast hamartoma, a benign breast lesion. 

As seen in this case, in dense breasts with obscured masses, digital breast tomosynthesis could be more helpful for better evaluation of the breast lesions, particularly the margin and internal components.