Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is elevation of the left hemidiaphragm anti mediastinal shift to the right . Mild left base atelectasis is seen . No pleural effusion or pneumothorax is seen . The cardiac silhouette is difficult to accurately assess due to the elevated left hemidiaphragm although appears top - normal to mildly enlarged . The aorta is calcified and likely tortuous .
    OUTPUT:
    
Elevated left hemidiaphragm with mediastinal shift to the right . No prior is available for comparison . No pleural effusion . Findings may be due to chronic elevation of the left hemidiaphragm , although diaphragmatic injury is not excluded on this study .