Table 2.
Histology of first and second resections
| Histology | First resection, n (%) | Second resection, n (%) |
|---|---|---|
| Same/similar | 93 (80.9) | |
| AIS | 1 (0.9) | 6 (5.2) |
| MIA | 8 (7.0) | 19 (16.5) |
| Lepidic | 7 (6.1) | 9 (7.8) |
| Acinar | 38 (33.0) | 38 (33.0) |
| Papillary | 30 (26.1) | 25 (21.7) |
| Solid | 6 (5.2) | 9 (7.8) |
| Micropapillary | 1 (0.9) | 2 (1.7) |
| Mucinous | 2 (1.7) | 7 (6.1) |
| Different | 22 (19.1) | |
| SCC–AC | 13 (11.3) | |
| AS–AC | 6 (5.2) | |
| LC–AC | 3 (1.7) | |
| T stage | ||
| T1a | 36 (31.3) | 54 (47.0) |
| T1b | 25 (21.7) | 13 (11.3) |
| T2a | 49 (42.6) | 44 (38.3) |
| T2b | 2 (1.7) | 2 (1.7) |
| T3 | 3 (2.6) | 2 (1.7) |
| N stage | ||
| N0 | 91 (79.1) | 87 (75.7) |
| N1 | 27 (20.9) | 16 (13.9) |
| N2 | 0 | 12 (10.4) |
| TNM stage | ||
| Ia | 57 (49.6) | 71 (61.7) |
| Ib | 31 (27.0) | 18 (15.7) |
| IIa | 22 (19.1) | 11 (9.6) |
| IIb | 5 (4.3) | 2 (1.7) |
| IIIa | 0 | 13 (11.3) |
Abbreviations: AC, adenocarcinoma; AIS, adenocarcinoma in situ; AS, adenosquamous carcinoma; LC, large cell carcinoma; MIA, minimally invasive adenocarcinoma; SCC, squamous cell carcinoma; TNM, tumor, node, and metastasis.