Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mild to moderately enlarged with a left ventricular predominance . The aorta appears dilated , but unchanged . There is no pulmonary vascular engorgement . Crowding of the bronchovascular structures likely relates to low lung volumes . No pleural effusion or pneumothorax is identified . There is a rounded opacity seen within the right mid lung field , which could reflect an area of developing infection . There are multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Patchy rounded opacity within the right mid lung field which is nonspecific , but could reflect an area of developing infection .