NCIt synonyms : Lymphoma of the Breast; Primary Breast Lymphoma; Lymphoma of Breast; PBL;
NCIt definition : A lymphoma that arises from the breast. There is no history of extramammary breast
lymphoma and ipsilateral axillary lymph node involvement does not exclude the diagnosis
of primary breast lymphoma. Most patients present with a painless breast lump. The
vast majority of cases are B-cell non-Hodgkin lymphomas. Diffuse large B-cell lymphoma,
follicular lymphoma, and extranodal marginal zone B-cell lymphoma of mucosa associated
lymphoid tissue are the most common types of primary non-Hodgkin lymphoma of the breast.
Primary Hodgkin lymphoma of the breast is rare.;