Pulmonary nodulosis is nodular lung involvement, which is a granulomatous disease, therefore confirming the diagnosis of pulmonary nodulosis also requires the exclusion of granulomatous diseases such as tuberculosis, atypical mycosis, fungal infections, brucellosis and beryllium disease. Clinical manifestations include cough, sputum, chest pain, wheezing, and dyspnea. Chest X-ray manifestations may be as follows: i. Enlarged hilar and mediastinal lymph nodes, symmetrical enlargement of hilar lymph nodes on both sides, typically potato-shaped. The lesions in the lungs may be of reticulonodular type, alveolar type, or large nodular type, and the infiltrative shadows in the lungs may be small or fused into large solid shadows, and there may also be interstitial fibrosis changes in both lungs. Third, when the trachea and pleura are involved, obstructive pneumonia, pulmonary atelectasis and pleural effusion may appear. Pulmonary function may be manifested as decreased small airway function and obstructive pulmonary ventilation dysfunction. In case of pulmonary fibrosis, pulmonary function is manifested as decreased pulmonary diffusion volume and restricted predominantly mixed ventilation dysfunction. Treatment currently considers glucocorticoids as the drug of choice, followed by immunosuppressants. However, in recent years, it has been reported that for asymptomatic pulmonary nodular disease, hormone therapy can be suspended and closely observed, and many patients can recover spontaneously. Most patients with pulmonary nodular disease have a good prognosis.