Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly and thoracic aortic calcifications but no pulmonary edema . There is mild right basilar atelectasis and degenerative changes of the thoracic spine ( DISH ) . There is no pleural effusion or pneumonia and no evidence of pneumothorax .
    OUTPUT:
    
No acute cardiothoracic process .