Introduction: Multiple myeloma (MM) is characterized by malignant proliferation of plasma cells, monoclonal bone marrow plasmacytosis, the presence of M-protein in serum and/or in urine and osteolytic bone lesions.
Presentation Of Case: We report a case of a 28-years old female, who was diagnosed to have relapsing extra-skeletal and extra-nodal plasmablastic myeloma, an atypical variant of MM with a poor prognosis. In addition to bone marrow plasmacytosis and the presence of M protein in the serum, the patient had an extramedullary lesion affecting the hard palate.