type b lymphoma prognosisnon hodgkin's lymphoma type btype b lymphoma cancernon hodgkin lymphoma b cell typeb cell lymphoma leg typediffuse large b cell lymphoma leg typetypes of b cell lymphomaatypical b cell lymphomasmall b cell non hodgkin's lymphomamature b cell non hodgkin's lymphomaindolent b cell non hodgkin lymphomalarge b cell