The CT manifestations of inflammatory nodules in the lungs are usually related to the etiology, and their CT manifestations cannot be generalized. They are usually round, with mostly smooth and clear edges or a few hairy, with ground-glass-like changes. Inflammatory nodules in the lungs are usually located in the lower lobes, and the foci in the mediastinal window usually have a diameter of less than 1.5 cm, and are rounded, with mostly smooth and clear edges or a few rough edges, with ground-glass changes, low density and uneven density, different morphology, consistent with the morphology of the lung segments, and slightly higher density in the middle. In addition, calcification within the inflammatory nodular lesions is only visible as spots. Inflammatory nodules in the lungs are mainly caused by repeated stimulation of the inflammatory response, and clinical manifestations often include fever, cough, sputum, hemoptysis, leukocytosis, etc. They are mainly treated with anti-infective drugs, and the lesions can usually be absorbed after treatment. In addition, inflammatory lung nodules are common in acute pneumonia, lung abscess, lung fungal disease, etc. Inflammatory pseudotumor of the lung also belongs to inflammatory lung nodules. It is recommended that the patient actively cooperate with the doctor to do regular review or improve the relevant examination, early detection of the disease and early treatment.