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Table 1 CT features of three groups of patients

From: Predictive CT features for the diagnosis of primary pulmonary mucoepidermoid carcinoma: comparison with squamous cell carcinomas and adenocarcinomas

Characteristics PMECs SCCs Adenocarcinomas
No. of patients % No. of patients % No. of patients %
Tumor size(cm) 2.5 ± 0.2   4.9 ± 0.2   3.9 ± 0.2  
Location
 Central type 4 10.8 2 2.6 2 2.6
 Hilar type 29 78.4 33 43.4 5 6.4
 Peripheral type 4 10.8 41 53.9 71 91.0
Margin
 Well-defined 27 73.0 17 22.4 32 41.0
 Ill-defined 10 27.0 59 77.6 46 59.0
Tumor shape
 Irregular 6 16.2 46 60.5 23 29.5
 Regular 31 83.8 30 39.5 55 70.5
Necrosis
 Present 3 8.1 30 39.5 18 23.7
 Absent 34 91.9 46 60.5 60 76.9
Calcification
 Present 6 16.2 16 21.1 10 12.8
 Absent 31 83.8 60 78.9 68 87.2
Enhancement degree
 Marked 25 67.6 11 14.5 20 25.6
 Moderate 10 27.0 32 42.1 31 39.7
 Mild 2 5.4 33 43.4 27 34.6
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