Table 2.
Radiological characteristics of MBC and PLC
| Factors | MBC (n = 27) | PLC (n = 37) | p-value | |
|---|---|---|---|---|
| Diameter (cm) (median, range) | 1.6 (0.6–2.8) | 2.2 (0.7–2.9) | <0.01 | |
| Opacity | pure solid | 27 | 10 | <0.01 |
| part solid | 0 | 27 | ||
| Border | well-defined | 26 | 15 | <0.01 |
| ill-defined | 1 | 22 | ||
| Edge | smooth | 1 | 1 | >0.99 |
| irregular | 26 | 36 | ||
| Spiculation | present | 5 | 8 | 0.76 |
| absent | 22 | 29 | ||
| Vascular convergence | present | 10 | 19 | 0.26 |
| absent | 17 | 18 | ||
| Pleural indentation | present | 9 | 20 | 0.10 |
| absent | 18 | 17 | ||
| Air bronchograms | present | 1 | 22 | <0.01 |
| absent | 26 | 15 | ||
| Location | peripheral | 16 | 21 | 0.22 |
| central | 11 | 16 | ||
| Laterality | right | 9 | 20 | 0.10 |
| left | 18 | 17 |
Two-category comparison was performed by Fisher’s exact test. Continuous data were compared using Mann-Whitney U test. MBC: metastasis from breast cancer; PLC: primary lung cancer