Breast lymphoma: radiologic imaging and clinical appearances.

Lymphoma of the breast is rare. To evaluate the radiologic imaging and clinical appearances of this condition, the authors studied, over a 26-year period, 20 patients (19 women) with primary lymphoma of the breast and 7 (all women) with secondary involvement. The right breast was affected in 14 cases. A wide spectrum of appearances was noted on mammography and ultrasonography, but the use of both techniques is indicated because lesions may be missed by either technique used alone.