Ultrasonographic Findings of Apocrine Lesions Arising from the Breast

A breast ultrasonography is the most frequently performed radiologic study along with the mammography. As in the mammography, breast ultrasonography renders the final evaluation by examining the shape, orientation, margin, border, echogenicity, patterns of the posterior shadowing, and changes of surrounding tissue of the breast mass according to BI-RADS (Breast Imaging Reporting and Data System). Apocrine proliferation of the breast is a common aging phenomenon, but the radiologic features are rarely reported. We described the radiologic features of breast apocrine lesions.