Table 1. Clinicopathologic characteristics of lung adenocarcinoma (89 tumors from 80 patients).
| Characteristics | Total N (%) | |||
|---|---|---|---|---|
| Sex (%) | ||||
| Male | 39 (48.8) | |||
| Female | 41 (51.2) | |||
| Age, range (median) | 37-78 (59) | |||
| Tumor size (mm), range (median) | 4-64 (21) | |||
| Staging | ||||
| I | 84 (94.4) | |||
| II | 1 (1.1) | |||
| III | 4 (4.5) | |||
| T category | ||||
| 1 | 73 (82.1) | |||
| 2 | 14 (15.7) | |||
| 3 | 2 (2.2) | |||
| N category | ||||
| 0 | 82 (92.1) | |||
| 1 | 5 (5.6) | |||
| 2 | 2 (2.2) | |||
| Extent of resection (%) | ||||
| Segmentectomy | 50 (56.2) | |||
| Lobectomy | 39 (43.8) | |||
| Most predominant histologic subtype | ||||
| Lepidic | 18 (20.2) | |||
| Acinar | 53 (59.6) | |||
| Papillary | 11 (12.4) | |||
| Solid | 1 (1.1) | |||
| Micropapillary | 6 (6.7) | |||
| No. of histologic subtypes within a tumor | ||||
| 1 | 19 (21.3) | Lepidic | 5 (26.3) | |
| Acinar | 11 (57.9) | |||
| Papillary | 3 (15.8) | |||
| 2 | 54 (60.7) | Lepidic + Acinar | 31 (57.4) | |
| Acinar + Papillary | 13 (24.1) | |||
| Acinar + Micropapillary | 1 (1.9) | |||
| Acinar + Solid | 9 (16.7) | |||
| 3 | 14 (15.7) | Lepidic + Acinar + Papillary | 6 (42.9) | |
| Lepidic + Acinar + Solid | 2 (14.3) | |||
| Acinar + Papillary + Micropapillary | 4 (28.6) | |||
| Acinar + Micropapillary + Solid | 2 (14.3) | |||
| 4 | 2 (2.2) | Lepidic + Acinar + Papillary + Micropapillary | 2 (100) | |