Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are hyperinflated with widened AP diameter of the chest , which likely reflects underlying COPD . There is blunting of the CP angles bilaterally which is compatible with small pleural effusion . Relative prominence of the hilar vascular structures raises potential concern for pulmonary arterial hypertension . Please correlate clinically . The heart size is within normal limits . The mediastinal contour appears normal . There is no pneumothorax . Bony structures are intact .
    OUTPUT:
    
COPD with tiny bilateral effusions . Possible pulmonary arterial hypertension accounting for the relative enlargement of the hilar vascular structures .