Are multiple solid nodules in the lungs metastatic tumors?

Multiple solid nodules in the lungs may be metastatic tumors or primary tumors in the lungs, which need to be identified by relevant examinations.
1. Lung metastatic tumor: combined with a history of malignant neoplasm, commonly found in intestinal tumors, liver tumors, renal tumors, etc.; the imaging manifestation is a solid nodule with round or round-like shape and smooth and neat margins.
2. Primary lung tumor: no history of malignant tumor is found in the past; the imaging manifestation is that the edge of the nodule is burr-like, lobular, pleural pulling and other signs, the morphology is irregular, and some of them may become ground-glass nodules with solid components.
It is recommended that the patient actively cooperate with the doctor, improve the relevant examination, such as PET-CT examination, to understand the metastatic situation, and follow the doctor’s advice to actively treat.