study of material from 500 cases of hodgkin 's disease , non-hodgkin lymphomas , and myeloma has revealed that many of these conditions may find a common origin in the lymphocyte , and that some malignant cells , previously identified as malignant histiocytes or reticulum cells are rather related to or derived from the transformed lymphocyte or immunoblast .
C0026764
myeloma
C0024264
lymphocyte