What kind of "lung nodule" is malignant?

1, long-term smoking history, family history of lung cancer, clear history of malignant tumor and other risk factors.

2. The diameter of the tumor is ≥ 1.5cm or 0.8- 1.5cm, but it shows malignant CT signs such as lobulation, burr, pleural traction, vascular crossing, bronchiolitis with gas, vesicular sign, eccentric thick-walled cavity and other nodules.

3. Mixed ground glass nodules with a diameter greater than 0.8 cm.