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Table 2 The performance of 90-gene expression signature in brain tumors

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

Reference diagnosis No. of specimens Agreement Accuracy (%)
PBTs
 Meningiomas 10 10 100
 Gliomas 7 7 100
 PNET 1 1 100
 Total 18 18 100
Origin of BMs
 Lung 26 21 81
 Colorectal 6 6 100
 Breast 6 6 100
 Neuroendocrine 4 4 100
 Cervix 1 1 100
 Liver 1 1 100
 Total 44 39 89
  1. BM brain metastases, PBT primary brain tumor, PNET primitive neuroectodermal tumor