peripheral blood smears and bone-marrow smears from 29 patients with malignant m-components ( 25 with multiple myeloma and 4 with malignant lymphoma ) , 13 patients with benign monoclonal gammopathy ( bmg ) , and 20 patients with polyclonal reactive plasmacytosis were examined by leucocyte alkaline phosphatase score ( lap-score ) and by acid phosphatase score in plasma cells from bone-marrow smears .
C0026764
multiple myeloma
C0032112
plasma cells