How to follow up the discovery of lung nodules

Patients with lung nodules can choose different follow-up methods according to the size of the nodule and the presence of risk factors for lung cancer.
1. If the lung nodule is smaller than 4mm and there are no risk factors for lung cancer, selective imaging follow-up is possible. If there are risk factors for lung cancer, imaging follow-up is usually performed again after 1 year, and if there is no significant change, annual imaging follow-up can be changed.
2. If the size of the lung nodule is 4~6mm and there are no risk factors for lung cancer, imaging follow-up is usually performed again after 1 year, and if there is no significant change, the patient can be transferred to routine annual imaging follow-up. If there are risk factors for lung cancer, imaging follow-up can be chosen at 6-12 months and 18-24 months, and if stable, it can be changed to regular annual imaging follow-up.
3. If the size of the lung nodule is 6-8mm and there are no risk factors for lung cancer, the patient should be followed up with imaging at 6, 12 and 18-24 months, and if the size of the lung nodule is stable, the patient can then switch to routine annual imaging. If there are risk factors for lung cancer, 3-6, 9-12, and 24 months of follow-up imaging is preferred. If the size of the lung nodule is stable, it can then be converted to routine annual imaging.
4. If the cause of solid and indeterminate lung nodules larger than 8mm, PET/CT and other relevant examinations can be improved to determine the possibility of its benign or malignant, and if necessary, surgical biopsy can be performed to clarify the cause.
Patients with lung nodules need to consult a doctor in a timely manner and standardize follow-up and treatment under the doctor’s guidance to avoid delaying their condition.