Table 1 Clinicopathologic features of ALK+ lung adenocarcinoma
Characteristic | No. of patients (%) |
|---|---|
Age, years | |
 Median | 55 |
 Range | 27–80 |
 < 60 | 39 (65.0%) |
 ≥ 60 | 21 (35.0%) |
Gender | |
 Male | 24 (40.0%) |
 Female | 36 (60.0%) |
Smoking status | |
 Non-smoker | 49 (81.7%) |
 Smoker | 11 (18.3%) |
Clinical staging | |
 IIIA-IIIB | 21 (35.0%) |
 IV | 39 (65.0%) |
ECOG PS | |
 0–1 | 55 (91.7%) |
 2 | 5 (8.33%) |
Predominant pattern | |
 Acinar | 26 (43.3%) |
 Solid | 13 (21.7%) |
 Papillary | 10 (16.7%) |
 Micropapillary | 4 (6.7%) |
 Lepidic | 7 (11.7%) |
Microscopic cytomorphologic findings | |
 Signet ring cells | 21 (35.0%) |
 Extracellular mucin | 19 (31.7%) |
 Cribriform pattern | 12 (20.0%) |