Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate cardiomegaly . The mediastinal and hilar contours are unremarkable . There is no pneumothorax or pleural effusion . Elevation of the right hemidiaphragm is noted , raising concern for a nonfunctioning hemidiaphragm . Lung volumes are low but without focal consolidation . There is right basilar atelectasis , likely a sequela of lack of excursion of the right hemidiaphragm . There is no pulmonary edema . A left axillary dual lead pacemaker is present with tips remain the right atrium and right ventricle as expected .
    OUTPUT:
    
1 . No focal consolidation concerning for pneumonia . 2 . Elevation of the right hemidiaphragm , concerning for absent function . Possible etiologies include prior trauma , eventration , or paralysis . 3 . Moderate cardiomegaly .