Table 1 CT features of three groups of patients
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 |