Table 2.
Comparison of computed tomography morphological features of lesions between groups
| Characteristics | NLC (n = 40) | NPMIL (n = 31) | p value |
|---|---|---|---|
| Location* | |||
| The upper lobe | 25 (62.50%) | 20 (64.52%) | 0.861 c |
| Right upper lobe | 11 | 14 | |
| Left upper lobe | 14 | 6 | |
| The middle and lower lobes | 15 (37.50%) | 11(35.48%) | |
| Right middle lobe | 2 | 1 | |
| Right lower lobe | 7 | 8 | |
| Left lower lobe | 6 | 2 | |
| Longest diameter of lesions (cm) | |||
| Mean ± standard deviation | 4.94 ± 0.88 | 4.72 ± 0.80 | 0.281 a |
| Range | 3.10–6.90 | 3.20–6.50 | |
| Longest diameter of necrotic foci (cm) | |||
| Median ± interquartile range | 2.85 ± 1.10 | 2.80 ± 1.10 | 0.280 b |
| Range | 2.10–5.20 | 2.00–4.30 | |
| Shape | |||
| Round or oval | 24 (60.00%) | 18 (58.06%) | 0.869 c |
| Irregular | 16 (40.00%) | 13 (41.94%) | |
| Margin | |||
| Well-defined | 28 (70.00%) | 17 (54.84%) | 0.188 c |
| Ill-defined (partially or completely) | 12 (30.00%) | 14 (45.16%) | |
| Consolidation or ground-glass opacity around the lesion | 17 (42.50%) | 18 (58.06%) | 0.193 c |
NLC, necrotic lung cancer; NPMIL, necrotic pulmonary mass-like inflammatory lesion
*If the lesion crosses a fissure, the location is defined as the lobe in which the lesion is predominantly located
a Two-independent-samples Student’s t-test
b Mann–Whitney U test
c Chi-squared test