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Table 1 TopoIIa expression status in different histologic types

From: Differential expression of topoisomerase IIα protein in salivary gland carcinomas: histogenetic and prognostic implications

  Topo IIα Expression Grade  
Histological type 0 1+ 2+ 3+ Total
Benign tumor      
Pleomorphic adenoma 10 0 0 0 10
Warthin's tumor 10 0 0 0 10
Malignant tumor      
Adenoid cystic carcinoma 5 7 3 2 17
Adenocarcinoma, 2 0 2 3 7
not otherwise specified      
Mucoepidermoid carcinoma 3 2 2 0 7
Salivary duct carcinoma 0 1 0 5 6
Acinic cell carcinoma 2 0 0 1 3
Carcinoma ex pleomorphc adenoma 0 0 0 3 3
Epithelial-myoepithelial carcinoma 2 1 0 0 3
Carcinosarcoma 0 0 1 1 2
Lymphoepithelial carcinoma 1 0 1 0 2
Myoepithelial carcinoma 0 1 0 1 2
Oncocytic carcinoma 1 0 0 0 1
Squamous cell carcinoma 0 0 0 1 1