title: Extramedullary plasmacytoma of the breast simulating breast cancer.
abstract: A patient with a palpable mass in the breast suggestive of carcinoma underwent radical modified mastectomy. Surprisingly, histology of the tumor revealed an extramedullary plasmacytoma. Further diagnostic work up showed no evidence of underlying multiple myeloma. Among neoplastic lesions of the breast, although rare, malignancy of mesenchymal or lymphoproliferative origin should always be considered.
authors.affiliation: Department of Internal Medicine, Ikazia Hospital, Montessoriweg 1, 3083 AN, Rotterdam, The Netherlands. ikazint@knmg.nl
authors.forename: C
authors.initials: C
authors.lastname: van Nieuwkoop
authors.forename: R W
authors.initials: RW
authors.lastname: Giard
authors.forename: H F
authors.initials: HF
authors.lastname: Veen
authors.forename: A
authors.initials: A
authors.lastname: Dees
mesh_terms: D000368:Aged; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000601:surgery; D002277:Carcinoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D015411:Mastectomy, Modified Radical / Q000379:methods; D010954:Plasmacytoma / Q000175:diagnosis* / Q000601:surgery