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Table 1 Patients information

From: 90-gene signature assay for tissue origin diagnosis of brain metastases

Characteristic No. of specimens (N = 62) Percentage (%)
Age, years
 Median 58.5
 Range 6–84
Gender
 Male 38 61
 Female 24 39
PBTs
 Meningiomas 10 56
 Gliomas 7 39
 PNET 1 5
Origin of BMs
 Lung 26 59
 Colorectal 6 14
 Breast 6 14
 Neuroendocrine 4 9
 Cervix 1 2
 Liver 1 2
Degree of differentiation in BMs
 Well-differentiated 18 41
 Poorly differentiated 26 59
  1. BM brain metastases, PBT primary brain tumor, PNET primitive neuroectodermal tumor