Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Elevated left hemidiaphragm is chronic and stable from ___ . The lung volumes are normal . Normal size of the cardiac silhouette . Normal hilar and mediastinal structures . No pneumonia , no pulmonary edema . No pleural effusions . Mild degenerative changes of the mid and lower pole thoracic spine with anterior bridging osteophytes , stable from ___ .
    OUTPUT:
    
Chronically elevated left hemidiaphragm and degenerative changes of the thoracic spine , unchanged since ___ . Otherwise , normal chest radiograph without evidence of pneumonia .