plasmacytoma

noun
plas·​ma·​cy·​to·​ma
variants: also plasmocytoma \ ˌplaz-​mə-​sī-​ˈtō-​mə How to pronounce plasmocytoma (audio) \
plural plasmacytomas also plasmacytomata\ -​mət-​ə How to pronounce plasmacytomata (audio) \

Medical Definition of plasmacytoma

: a myeloma composed of plasma cells