Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette demonstrates borderline cardiomegaly . Atelectasis is noted at the right lung base . There is no evidence of focal consolidation , pleural effusion or pneumothorax . The diaphragms appear mildly flattened , and the lungs are hyperinflated , suggestive of COPD . Known granuloma is again noted within the left upper lobe . The aorta appears tortuous .
    OUTPUT:
    
Atelectasis at right lung base with no acute cardiopulmonary process .