Small nodules in the lower lobes of both lungs usually refer to increased density in the lower lobes of both lungs observed by CT or other imaging studies, with a diameter of 5-10 mm, which may be benign or malignant lung nodules. If malignant nodules are suspected, further tests should be done.
1. Benign pulmonary nodules: usually due to benign tumors such as pulmonary stenosis, infections such as Mycobacterium tuberculosis infection, inflammatory lesions such as sarcoidosis, etc. Patients may be asymptomatic. Patients may be asymptomatic and do not require special treatment, regular follow-up is sufficient.
2. Malignant lung nodules: commonly found in primary lung cancer, such as lung adenocarcinoma, squamous cell carcinoma, large cell carcinoma, etc. Metastatic malignant tumors, such as head and neck malignant tumors. Metastatic malignant tumors such as head and neck malignant tumor, melanoma, colon cancer, etc..
Under imaging, the nodule is accompanied by features such as lobulation, short burr, pleural pull sign, pleural depression sign, etc. In this case, the next step of examination is required.
Patients with small nodules in the lower lobes of both lungs should consult the relevant doctors to clarify the benign and malignant nature of the nodules and then target the treatment.