Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior radiograph , very subtle increase in pulmonary vascular markings may be due to mild pulmonary vascular congestion . Otherwise , the heart size , mediastinal , and hilar contours are normal , except for enlarged ascending aorta . The lungs are clear without pleural effusion , focal consolidation , or pneumothorax . Compression deformity of a lower thoracic vertebral body is unchanged .
    OUTPUT:
    
1 . No new focal consolidation concerning for pneumonia . 2 . Compared with the prior radiograph , very subtle increase in pulmonary vascular markings may be due to mild pulmonary vascular congestion . 3 . Most likely enlarged ascending aorta . Correlation with chest CT is to be considered .