Primary lymphoma of the breast.
D000328:Adult; D001943:Breast Neoplasms / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008223:Lymphoma / Q000473:pathology; D016403:Lymphoma, Large B-Cell, Diffuse / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000473:pathology; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000473:pathology