title: Primary lymphoma of the breast.
abstract: We describe a case of primary lymphoma of the breast which clinically mimicked a phyllodes tumor. The diagnosis and treatment of this rare neoplasm are discussed. The lymphomas, neoplasias of the immune system, comprise a large group of proliferative diseases of the lymphoreticular tissue which are classified into two histological types, i.e., Hodgkin and non-Hodgkin. Primary lymphomas of the breast are quite rare, with an incidence ranging from 0.4 to 0.53% of all malignant breast tumors (2). They are characterized by uni- or bilateral involvement of the breast, with or without homolateral axillary lymphadenopathy, and by the absence of lymphatic disease at another site (7). We report here a case of primary non-Hodgkin lymphoma of the left breast and we discuss its clinical aspects and the treatment instituted.
authors.affiliation: Department of Tocogynecology, Escola Paulista de Medicina, São Paulo, Brasil.
authors.forename: A C
authors.initials: AC
authors.lastname: Nazário
authors.forename: C I
authors.initials: CI
authors.lastname: Tanaka
authors.forename: G R
authors.initials: GR
authors.lastname: de Lima
authors.forename: L H
authors.initials: LH
authors.lastname: Gebrim
authors.forename: V
authors.initials: V
authors.lastname: Chiferi Júnior
mesh_terms: D001706:Biopsy; D001940:Breast / Q000473:pathology; D001943:Breast Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D016393:Lymphoma, B-Cell / Q000473:pathology*; D008875:Middle Aged; D003557:Phyllodes Tumor / Q000473:pathology