Dural Plasmacytoma with Meningeal Myelomatosis in a Patient with Multiple Myeloma

Figure 2

Pathological study: tumor proliferation of diffuse growth plasma cells made up of atypical plasma cells. The tumor immunophenotype shows lambda light chain restriction. The rest of the markers analyzed were negative (EMA, CD56, CD117, CD20, CD79a, and CD3). The Ki-67 proliferative index was approximately 30–40%.