Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The main pulmonary artery contour is slightly prominent , but stable . Central pulmonary arteries are also mildly enlarged . The pulmonary interstitium has a mildly coarsened appearance bilaterally , but without significant change . There is no pleural effusion or pneumothorax . Mild rightward convex curvatures centered along the mid thoracic spine appear similar .
    OUTPUT:
    
Similar central pulmonary artery enlargement , for which the possibility of pulmonary hypertension should be considered in the appropriate clinical setting .