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Table 1 Patients’ characteristics

From: Enhancer of zeste homologue 2 (EZH2) is a reliable immunohistochemical marker to differentiate malignant and benign hepatic tumors

  Hepatocellular carcinoma (n = 44) Cholangiocarcinoma (n = 23)
Age (mean) 58 58
Age (range) 42-85 30-80
Gender (male/female) 32/12 13/10
Histological grading Core/surgical Core/surgical
 I. 12 8/4 5 0/5
 II. 22 10/12 14 7/7
 III. 9 6/3 4 3/1
 IV. 1 0/1   
Other tumors     
Hepatoblastoma n = 31 2/29   
Hepatocellular adenoma n = 24 3/21   
Biliary cystadenoma n = 3 0/3   
Metastatic tumor n = 17 9/8 8 colon, 2 breast, 2lung, 3neuroendocrine, 1 urothel, 1pancreas
Childhood tumors n = 16 0/16 4 rhabdomyosarcoma, 5neuroblastoma, 5 Wilms’ tumor, 2 rhabdoid tumor
Non tumorous lesions     
High grade dysplastic nodule n = 15 0/15   
Biliary hamartoma n = 3 0/3   
Caroli’s disease n = 3 0/3