Table 2 CT morphological features of all PLEC patients
CT Imaging Features | All patients (N = 113) | |
|---|---|---|
Category | Total (%) | |
Maximum diameter | median (IQR), cm | 3.4 (2–4.7) |
CT attenuation value | mean ± SD, HU | 37.3 ± 10.5 |
Tumor localization | ||
Central | 25 (22.1) | |
Peripheral | 88 (77.9) | |
Morphology | ||
Irregularity | 9 (8.0) | |
Round/oval | 104 (92.0) | |
Tumor site in lobe | ||
Right lung | 64 (56.6) | |
RUL | 13 (11.5) | |
RML | 20 (17.7) | |
RLL | 21 (18.6) | |
Involved multiple lobes | 10 (8.8) | |
Left lung | 49 (43.4) | |
LUL | 20 (17.7) | |
LLL | 27 (23.9) | |
Involved multiple lobes | 2 (1.8) | |
Interface | ||
Ill-defined | 2 (1.8) | |
Well-defined, smooth | 69 (61.1) | |
Well-defined, coarse | 42 (37.2) | |
Margin | ||
Lobulation | 92 (81.4) | |
Spiculation | 20 (17.7) | |
Spine-like process | 19 (16.8) | |
Internal characteristics | ||
CT bronchograms | ||
None | 17 (15.0) | |
Dilatation, distortion | 17 (15.0) | |
Cut-off | 79 (70.0) | |
Calcification | 10 (8.8) | |
Necrosis | 19 (16.8) | |
Adjacent structure | ||
Vascular convergence | 67 (59.3) | |
Vascular encasement | 57 (50.4) | |
Hilar and/or mediastinal LAP | 54 (47.8) | |
Pleural and/or pericardial effusion | 9 (8.0) | |