Table 1 Patient Characteristics of the pPCL cohort compared to a previously published MM cohort17,18.

From: Genomic analysis of primary plasma cell leukemia reveals complex structural alterations and high-risk mutational patterns

Patient clinical characteristics

pPCL (n = 23)

MM (n = 1273)

p value

Median age at diagnosis (Min−Max)

59 (36–77)

66 (27–93)

 

Age ≥ 65 years (%)

9/23 (39%)

693/1273 (54%)

NS

Isotype (Kappa/Lambda)

11/12

 

ISS stage I (%)

0/23 (0%)

360/1170 (31%)

<0.01

ISS stage II (%)

1/23 (4%)

442/1170 (38%)

<0.01

ISS stage III (%)

22/23 (96%)

368/1170 (31%)

<0.0001

Elevated LDH (%)

13/17 (76%)

 

Elevated creatinine (≥2 mg/dL)

18/22 (81%)

 

t(11;14)

5/23 (22%)

234/1273 (18%)

NS

t(14;16) or t(14;20)

10/23 (43%)

62/1273 (5%)

<0.0001

t(4;14)

2/23 (9%)

58/461 (13%)

NS

Hyperdiploidy

3/23 (13%)

456/1074 (42%)

<0.01

Gain of chromosome 1q

17/23 (74%)

314/1074 (29%)

<0.0001

 1q duplication (=3 copies)

13/23 (57%)

 

 1q amplification (≥4 copies)

4/23 (17%)

 

C-Myc translocations

   

 Ig partner loci (IGH, IGK, IGL)

5/23 (22%)

202/751 (27%)

NS

 Non-Ig partner loci (FAM46C, MYNN, SPARC, QRSL1, PLXNA4, CDH7, RNF123)

9/23 (39%)