Pulmonary nodules There are 3 types of pulmonary nodules, which are solid nodules, ground-glass nodules, and mixed nodules.
1.Solid nodules
CT shows a high density of nodules, completely occluding the lungs, opaque, and the underlying lung markings are not visible.
2.Ground-glass nodules (ground-glass nodules or ground-glass shadows.)
CT shows that the nodules are denser than the surrounding lungs, but they do not completely occlude the lungs, like ground-glass, and the textured tissue of the lungs behind them can be seen.
3.Mixed ground-glass nodules
CT shows ground-glass nodules mixed with solid nodules.
The vast majority of pulmonary nodules, more than 90% of which are benign, and only about 1% of which are truly malignantSmall nodules in the lungs are mostly caused by benign lesions, inflammation, etc., and the probability of lung cancer is less than 1% if the lung nodules are less than 6 mm;For lung nodules with a diameter of between 6 and 8 mm, the probability of lung cancer is 05%~2%；Lung nodules with a diameter greater than 8 mm have a probability of lung cancer greater than 3%, and the larger the nodules, the greater the probability of malignancy, so it is necessary to pay attention to regular reexamination.
For pulmonary nodules, general management recommendations are:
1.Ground-glass nodules or partially ground-glass nodules and solid nodules
Less than 5 mm is a low-risk risk and can be further followed up for observation
More than 5mm is an intermediate risk, which should be paid attention to, and attention should be paid to distinguishing inflammation or other causes.
Enlargement of non-solid nodules or an increase in the presence of a realistic component usually indicates a malignant transformation.
2.A single solid nodule or incomplete solid nodule below 8 mm is considered an intermediate-risk nodule
Follow-up observation can be made on a monthly basis as appropriate.
If the nodule above 8 mm is a high-risk nodule, it needs to be paid close attention to, closely observed for changes, and biopsied or surgically removed if necessary.
3.Non-solid nodules 10mm
Patients who are unwilling or unable to undergo follow-up surgical biopsy must be followed up early at 3 months and checked for hematologic tumor markers.
4.Attention needs to be paid to the number of nodules
If the size of the diffuse nodule is 10 together, it is likely to be accompanied by other symptoms, and the lung metastasis of extrapulmonary malignant tumors should be noted, and the possibility of primary lung cancer should also be considered for multiple high-risk nodules.