Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is rotated slightly to the left . Left base retrocardiac opacity most likely represents atelectasis . No definite focal consolidation is seen . There is no pleural effusion or pneumothorax . The cardiac silhouette is top - normal . Prominence of the main pulmonary artery is seen which may be due to underlying pulmonary hypertension . Degenerative changes are seen along the spine .
    OUTPUT:
    
Prominence of the main pulmonary artery raises question of pulmonary hypertension .