Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . The heart size is mildly enlarged but unchanged . Mediastinal and hilar contours are stable , with unfolding of the thoracic aorta again noted . The pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is seen . Mild atelectatic changes are noted within the left lung base . Cervical spinal fusion hardware and right shoulder arthroplasty are incompletely assessed on this exam . Previously noted right PICC has been removed .
    OUTPUT:
    
No acute cardiopulmonary abnormality .