concentrates of amyloid substance in the other class ( type b amyloidosis ) , represented by a case of multiple myeloma , 3 other cases of neoplastic disease and a case of primary cardiac amyloidosis , were distinguished by the presence of an electrophoretically more heterogeneous group of protein constituents with different mobilities and with apparently higher molecular weights than that of protein a , by an amino acid composition that is clearly different from that of the first class , and by retention of the typical congo red-binding property at ph 12 or higher .
C0026764
multiple myeloma
C0268381
primary