TABLE 2.
Clinical characteristics of GGNs.
| Characteristics | Number |
|---|---|
| Sex | |
| Male | 103 (33.0%) |
| Female | 209 (67.0%) |
| Age, year | 58 (50–65) |
| Pathological subtype | |
| Benign | 25 (8.0%) |
| AAH | 12 (3.8%) |
| AIS | 20 (6.4%) |
| MIA | 74 (23.7%) |
| IAC | 181 (58.0%) |
| EGFR mutation (n = 30) | |
| Mutation in exon 21 | 12 (40.0%) |
| Mutation in exon 19 | 10 (33.3%) |
| Wild type | 8 (26.7%) |
| Preoperative position (n = 75) | |
| Pneumothorax | 29 (38.6%) |
| Hemorrhage | 32 (42.7%) |
| Without complications | 14 (18.7%) |
| Interoperative biopsy (n = 197) | |
| Misdiagnosis | 7 (3.6%) |
| Underestimate the infiltration | 20 (10.1%) |
AAH, atypical adenomatous hyperplasia; AIS, adenocarcinoma in situ; MIA, minimally invasive adenocarcinoma; IAC, invasive adenocarcinoma.