Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is mildly enlarged . Aorta is tortuous and pulmonary vessels are within normal limits . Lungs are clear except for a patchy infrahilar opacity on the right . There is no pleural effusion . Healed displaced right rib fractures are noted .
    OUTPUT:
    
1 . Patchy right infrahilar opacity of uncertain significance . This could be due to localized aspiration , atelectasis or developing pneumonia . Short - term followup radiographs would be helpful to document resolution and to exclude a neoplasm . 2 . Mild cardiomegaly without evidence of congestive heart failure . Findings entered into radiology communications dashboard on date of study .