Extramedullary Plasmacytoma of the Pancreas: Imaging Findings: Case Report

the incidence of extramedullary plasmacytoma is 5% of all plasma-cell neoplasms. The vast majority of extramedullary plasmacytomas present as a tumor secondary to systemic myelomatosis of the bone marrow; extramedullary plasmacytoma involving the pancreas is very rare, and only 19 cases have been reported in the English-language literature (1). A few such reports have described the radiologic findings (1), but to the best of our knowledge, none have described the US, CT, and MR imaging findings in patients in whom multifocal involvement of extramedullary plasmacytoma and an initial diagnosis of multiple myeloma were simultaneous. We present the US, CT, and MR findings of pancreatic plasmacytoma in a patient with multiple myeloma.