Multiple nodules in both lungs may have a variety of diagnostic possibilities, including infections, tumors, pneumoconiosis, vasculogenic diseases, and other causes, and require a differential diagnosis with imaging and pathology.
Multiple nodules in both lungs refer to multiple hyperdense shadows less than 3mm in diameter on chest radiograph or CT, and the possible causes are:
1. Infection: it also includes tuberculosis infection, fungal infection, spherical pneumonia, lung abscess, parasites and other infections.
2. benign and malignant tumors: mainly divided into chondrosarcoma, fibroma, lipoma, lung cancer, metastatic carcinoma and so on.
3. Pneumoconiosis: excessive inhalation of dust caused by occupational factors can form multiple nodules in the lungs, which can lead to pulmonary fibrosis in serious patients.
4. Vascular origin: there are arteriovenous malformation, pulmonary infarction, varicose veins or hematoma.
Most patients cannot define the nature of the nodule according to single CT examination, and need to be followed up or consider biopsy to define the pathology. The current clinical management of multiple pulmonary nodules is to evaluate further scans and treat each individual nodule with caution, rather than arbitrarily assuming that the others are metastases or benign lesions.
Therefore, there is no need to be unduly alarmed when multiple nodules are detected in both lungs, but they should be taken seriously and treated with targeted management with the help of a physician.