Extramedullary (EM) plasmacytoma disease is an aggressive presentation at diagnosis and relapse for multiple myeloma (MM) patients. EM plasmacytoma is divided into two groups: the first group comprises tumors that extend directly from osteolytic bone lesions, while the second results from plasmacytoma infiltration into soft tissues, with no relation to the bone. Despite new therapies and monoclonal antibodies, the survival for patients with EM plasmacytoma is poor. The involvement of pleural effusion is uncommon in multiple myeloma.
Part of the book: Multiple Myeloma