Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle increased opacity in the right infrahilar region is likely atelectasis , seen only on the frontal view . No definite new focal consolidation to indicate focal pneumonia . No pleural effusion , edema , or pneumothorax . The cardiac silhouette remains enlarged , similar the prior exam . Multilevel degenerative changes in the thoracic spine are again overall unchanged .
    OUTPUT:
    
1 . No focal pneumonia . 2 . Cardiomegaly .