Table I.
Patient characteristics.
| Characteristics | N | % |
|---|---|---|
| No. of patients | 30 | |
| Age (years) | ||
| Mean | 58 | |
| Range | 41–80 | |
| Nodule diameter (mm) | ||
| Mean | 12 | |
| Range | 6–22 | |
| Nodule type | ||
| Solid | 14 | 47 |
| Mixed GGO | 14 | 47 |
| Pure GGO | 2 | 6 |
| Coincidence | ||
| Yes | 7 | 23 |
| No | 23 | 77 |
| DFI (months) | ||
| Mean | 68 | |
| Range | 6–229 | |
| Smoking status | ||
| Smoker | 3 | 10 |
| Non-smoker | 27 | 90 |
| Stage of breast cancer | ||
| pT | ||
| pT1 | 10 | 33 |
| pT2 | 17 | 57 |
| pT3 | 3 | 10 |
| pN | ||
| pN0 | 15 | 50 |
| pN1 | 14 | 47 |
| pN2 | 1 | 3 |
| Laterality between breast cancer and SPN | ||
| Ipsilateral | 15 | 50 |
| Contralateral | 15 | 50 |
| Past history of malignancy | ||
| Breast cancer only | 27 | 90 |
| Breast cancer and other types | ||
| Uterine cancer | 2 | 7 |
| Colon cancer | 1 | 3 |
GGO, ground-glass opacity; DFI, disease-free interval; SPN, solitary pulmonary nodule.