Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is top normal size . There is enlargement of the left pulmonary outflow tract , likely reflecting pulmonary hypertension . Cardiomediastinal contours are otherwise unremarkable . Lungs are well expanded and clear with no focal consolidation , pleural effusions , or pneumothorax . Bony structures are intact .
    OUTPUT:
    
Enlargement of the pulmonary outflow tract suggests pulmonary hypertension , recommend correlation with echocardiography .