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Extramedullary plasmacytoma presenting as a primary mass in the breast. A case report
Jesús Vera-Alvarez1, Miguel Marigil-Gómez, María Dolores García-Prats
1Department of Pathology, Hospital General San Jorge, Avenida Martinez de Velasco, 36 22071-Huesca, Spain.
Background:
Extramedullary plasmacytoma (EMP) of the breast is extremely rare, especially that not associated with multiple myeloma.
Case:
A case of plasmacytoma of the breast in a 73-year-old man was diagnosed by fine needle aspiration cytology (FNAC). Aspiration smears revealed a dispersed population of plasmacytoid cells at various stages of maturation. The tumor was excised, and the histologic sections confirmed the cytologic diagnosis.
Conclusion:
FNAC diagnosis of plasmacytoma of the breast offers the opportunity to distinguish these neoplasms from primary mammary tumors and avoid unnecessary surgery.