WT1 and plasmacytoma: A median WT1 cytoplasmic H score in relapsed plasmacytomas was 210 (60–300) in comparison to 10 (0–265) (p = 0.002), 80 (0–300) (p = 0.011), and 90 (0–300) (p = 0.031) in plasmacytoma samples at first diagnosis, bone marrow samples at first diagnosis, and bone marrow samples at relapse, respectively (Figure 1C; table 2).