Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . The aorta remains tortuous . Enlargement of the pulmonary arteries is again noted , unchanged . Pulmonary vasculature is not engorged . Elevation of the right hemidiaphragm is chronic with associated a right basilar atelectasis . Minimal streaky opacity in the left lung base also is compatible atelectasis . No focal consolidation , pleural effusion , or pneumothorax is present . Several anterior compression deformities within the thoracic spine appear unchanged .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Chronic right hemidiaphragmatic elevation with bibasilar atelectasis . Enlarged pulmonary arteries bilaterally suggestive of pulmonary arterial hypertension .