PRIMARY BREAST LYMPHOMA: REPORT OF 2 CASES AND REVIEW OF THE LITERATURE

Primary breast lymphoma (PBL) is a very rare disease. Most breast lymphomas (70-90%) are non-Hodgkin?s type (NHLs), and diffuse large B-cell (DLBCL) account for 56% - 84%. They mainly affect women between 55 and 62 years, but they can also affect men. Clinically they present as painless, fast growing masses and there are four main criteria for the diagnosis of primary breast lymphoma. Imaging features are non-specific, although there are the key to suspect it. Diagnosis is confirmed with core needle or excisional biopsy and immunohistochemistry. We present two representative cases of PBL from our institution and a complete review of the literature.