Bilateral breast MALT lymphoma: a case report and review of the literature

Breast lymphoma is a rare disease. Both primary and secondary breast involv ement have been reported. Most primary breast lymphomas are high-grade mali gnant neoplasms, mainly large cell and Burkitt type. Low-grade lymphomas of the breast, particularly mucosa-associated lymphoid tissue (MALT) lymphoma s, have been exceedingly rare. In this report we present a patient with bil ateral breast involvement by MALT lymphoma. Our patient developed localized MALT lymphoma in both breasts in a sequential fashion. She was treated wit h bilateral lumpectomy, followed by radiation therapy to both breasts. The patient is alive and well more than 1 year after therapy with no recurrence . We believe this is the first such case described in detail in the literat ure.