Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size has decreased when compared to the prior study , and now appears only mildly enlarged . The aorta is tortuous . Bilateral hilar enlargement compatible with pulmonary arterial hypertension and likely lymphadenopathy is stable . The pulmonary vascularity is normal and the lungs are clear . No pleural effusion or pneumothorax is detected . There are no acute osseous abnormalities . Again noted within the left upper quadrant is a gastric band .
    OUTPUT:
    
No acute cardiopulmonary abnormality , with interval decrease in size of the cardiac silhouette which is only mildly enlarged . Unchanged bilateral hilar enlargement likely due to a combination of pulmonary arterial hypertension and lymphadenopathy .