Lung micronodules Lu-rads2 category are mostly caused by benign diseases and are mostly not serious; there is only about 1% risk of malignancy, which is more serious if they are malignant.
Lung nodules are imaging manifestations of a wide range of benign and malignant lung diseases; micronodules are lung nodules <5 mm and have a malignancy rate of about 1%. Lung nodules can be assessed for malignant risk based on imaging, and the Lu-rads2 category refers to benign lung nodules with a malignancy rate of <1%.
Therefore, this nodule is basically a benign disease such as pneumonia, misshapen tumor, sarcoidosis, etc. It is mostly not serious, and can be improved or cured by timely treatment with medication such as ceftriaxone or surgical resection, and only a small number of patients with severe pneumonia have serious conditions.
The nodule has only a very low risk of being a malignant tumor such as bronchopulmonary cancer, but if it is malignant, it is more serious, and if not treated in time it may lead to enlargement of the lesion, local spread and distant metastasis. However, the lesions are small and mostly in early stage, and the prognosis of timely treatment is better.
It is recommended that patients should consult a specialist for timely consultation and follow the doctor's instructions for follow-up and medication.