Primary breast lymphoma: a case report

Primary breast lymphoma (PBL) is a clinicopathological entity characterized by the appearance of a unilateral breast mass of months of evolution, infrequently accompanied by signs of skin edema, retraction, erythema and nipple involvement. This rare situation is especially observed during pregnancy or postpartum, suggesting that tumor growth is influenced by hormonal stimulation, although its association with other processes such as antecedent autoimmune diseases have been documented.1 We report the case of a 46-year-old female, with no medical history of interest, who consulted due to the appearance of a 4-cm tumor in the left breast of six months of evolution. We proceeded with the study, making radiological imaging (mammogram and magnetic resonance) and histopathological investigations. The examinations conducted, including blood count, biochemistry, serologies, and tumor markers, were normal highlighting slightly elevated 2-microglobulin levels (2.9 mg/L). Mammography and magnetic resonance