Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the ___ examination , there has been interval development of mild cardiomegaly . The hilar and mediastinal contours are within normal limits . There is no pneumothorax , focal consolidation , or pleural effusion . ORIF rods within the left humerus are unchanged in position .
    OUTPUT:
    
Mild cardiomegaly , new since ___ . No superimposed acute process .