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| Pathological findings | n | Nodal metastasis, n (%) | ||
|---|---|---|---|---|
| pN(+) | pN1 | pN2 | ||
| Pathological nodal metastasis | 325 | 38 (11.7) | 21 (6.5) | 17 (5.2) |
| Histology | ||||
| Adenocarcinoma | 253 | 28 (11.1) | 14 (5.5) | 14 (5.5) |
| Squamous cell carcinoma | 52 | 5 (9.6) | 3 (5.8) | 2 (3.8) |
| Large or small cell carcinoma | 16 | 4 (25.0) | 3 (18.8) | 1 (6) |
| Other rare cell types | 4 | 1 (25.0) | 1 (25.0) | 0 (0) |
| Surgery | ||||
| Lobectomy | 246 | 35 (14.2) | 19 (7.7) | 16 (6.5) |
| ≤ Segmentectomy | 79 | 3 (3.8) | 2 (2.5) | 1 (1.3) |
