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Table 1 Clinical characteristics of SCNSL patients

From: Parenchymal central nervous system involvement in aggressive B-cell lymphoma: retrospective analysis of clinical and MRI features in a Chinese population

Characteristics N %
Age at initial disease, mean (range) 59 (20–76)  
  ≤ 60 13 50.0
  > 60 13 50.0
Gender
 Male 14 53.8
 Female 12 46.2
Primary site
 Lymph node 12 46.2
 Extranodal 14 53.8
 Breast 4 15.4
 Testicular 3 11.5
 Others 7 26.9
CNS Relapse Type
 Isolated disease 21 80.8
 CNS with disease progression 1 3.8
 Combined disease 5 15.4
CNS relapse time, median (range) 3 (0–10)  
  < 5 years 19 73.1
  ≥ 5 years 7 26.9
Performance Status at CNS relapse
 0–1 18 69.2
 2–4 8 30.8
Diagnosis approaches
 Biopsy or surgery resection 24 92.3
 Enhanced MRI 2 7.7