The presence of changes in the upper lobe of the lung with ground glass nodules is commonly associated with imaging findings of an occupying lung lesion, and depending on the cause, appropriate treatment measures are taken. The more common are infectious factors, such as infection by Mycobacterium tuberculosis, which cause tuberculosis foci. In most cases, primary tuberculosis, also known as primary syndrome, does not require special treatment when the patient’s resistance is strong and can heal on its own without treatment. However, for secondary tuberculosis, it is necessary to combine anti-tuberculosis drugs, such as isoniazid, rifampin, ethambutol, pyrazinamide, and levofloxacin, to achieve cure by standard treatment. In addition, for more specific bacterial infections caused by pneumonia, right upper pneumonia can be caused by Pseudomonas aeruginosa, which can be completely cured with ceftazidime and ciprofloxacin, and other occupying lesions such as bronchopulmonary carcinoma and alveolar cell carcinoma, which require early surgical resection and radiotherapy, chemotherapy and targeted drug therapy.