Table 3.
Classification of Lung Cancers Based on Key CT Features
| Types | Numbers | Calcification | Vacuole or Cavity | Spiculation | Peripheral Patch | Abutting Pleura | Wide Base with Pleura | Pleural Indentation | Sporadic Patch in Same Lobe | Air Bronchogram |
|---|---|---|---|---|---|---|---|---|---|---|
| I: Well-defined boundary | 275 (88.7) | 4 (1.5) | 24 (8.7) | 11 (4.0) | 6 (2.2) | 29 (10.5) | 13 (4.7) | 10 (3.6) | ||
| Ia: Smooth margin | 119 (43.3) | - | 7 (5.9) | - | - | 7 (5.9) | 3 (2.5) | 8 (6.7) | 2 (1.7) | 3 (2.5) |
| Ib: Coarse margin | 70 (25.5) | - | 5 (7.1) | - | - | 4 (5.7) | 3 (4.3) | 7 (10.0) | 5 (7.1) | 1 (1.4) |
| Ic: Spiculated margin | 86 (31.3) | 4 (4.7) | 12 (14.0) | / | - | - | - | 14 (16.3) | 6 (7.0) | 6 (7.0) |
| II: Blurred boundary/Peripheral patch | 20 (6.5) | 5 (25.0) | 2 (10.0) | |||||||
| Blurred boundary | 2 (10.0) | - | - | - | - | - | - | 1 (50.0) | - | - |
| Peripheral patch | 18 (90.0) | - | - | 5 (27.8) | / | - | - | 1 (5.6) | - | - |
| III: Heterogeneous nodules | 15 (4.8) | - | - | 1 (6.7) | - | - | - | - | - | 1 (6.7) |
| IV: Polygonal nodules | - | - | - | - | - | - | - | - | - | - |
| Total | 310 | 4 (1.3) | 24 (7.7) | 6 (1.9) | - | 11 (3.5) | 6 (1.9) | 31 (10.0) | 13 (4.2) | 11 (3.5) |
Note: Data are express as n (%).