Growth <30%# | Growth ≥30%¶ | Total | ||
Slow+ | Fast§ | |||
Non-solidƒ | ||||
Non-resected | 13 | 15 | 1 | 29 |
Benign | 2 | 1 | 3 | |
AIS | 4 | 1 | 5 | |
Invasive | 2 | 2 | 4 | |
Subtotal | 15 | 22 | 4 | 41 |
Part-solidƒ | ||||
Non-resected | 24 | 16 | 40 | |
Benign | 2 | 2 | ||
AIS | 1 | 2 | 3 | |
Invasive | 1 | 13 | 1 | 15 |
Subtotal | 25 | 30 | 5 | 60 |
Total | 40 | 52 | 9 | 101 |
AIS: adenocarcinoma in situ. #: including 22 subsolid nodules that were stable or decreased in size; ¶: increase in mass compared with baseline computed tomography (i.e. the first computed tomography on which the nodule could be detected); +: mass doubling time ≥400 days; §: mass doubling time <400 days; ƒ: nature of the subsolid nodule as assessed on the last computed tomography scan.