Serial MR findings and comprehensive review of bilateral lupus mastitis with an additional case report.

Lupus Mastitis (LM) is a rare presentation of lupus panniculitis involving the breast. Because it often presents as a tender palpable mass, a workup for malignancy usually ensues. It is well documented that surgery may worsen the condition; therefore, it is important to consider LM in the differential of a palpable breast mass in patients with systemic lupus erythematosus (SLE). Currently, management of LM remains primarily medical. We discuss the multi-disciplinary work-up of LM, and further describe its appearance on serial Magnetic Resonance (MR) exams.