Conditions that Mimic Primary Breast Carcinoma on Mammography and Sonography

There are a number of benign conditions or non-mammary malignancies that share similar appearances to those seen in primary breast carcinoma, causing diagnostic confusion. This pictorial review aims to describe and illustrate the mammographic and sonographic appearance of these conditions, namely pyogenic abscess, tuberculosis of the breast, granulomatous mastitis, lymphocytic mastitis, fat necrosis, ovarian metastasis, multiple myeloma, primary lymphoma of the breast, sclerosing adenosis, and radial scar.