Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated , suggesting chronic obstructive pulmonary disease . Slight blunting of the right costophrenic angle may be due to pleural thickening or very trace pleural effusion . Subtle right base opacity is felt to be due to overlap of vascular structures rather than true focal consolidation . This could be further assessed on PA and lateral views of the chest . The cardiac silhouette remains enlarged . Mediastinal contours are stable with slight prominence of the main pulmonary artery which can be seen with pulmonary arterial hypertension . Aortic knob is calcified . Prominent right hilum is stable .
    OUTPUT:
    
COPD . Slight blunting of the right costophrenic angle may be due to pleural thickening or a very trace pleural effusion . Subtle right base opacity is felt to be due to overlap of vascular structures rather than true focal consolidation . This could be further assessed on PA and lateral views of the chest .