Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP view of the chest was reviewed . Heart size is top normal . Mediastinal and hilar contours are stable . There is no pneumothorax or large pleural effusion . Lungs are well expanded with no focal consolidation concerning for pneumonia . Degenerative changes of the right AC joint are noted .
    OUTPUT:
    
No acute cardiopulmonary process .