Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lungs are well expanded and clear without focal consolidation , pleural effusion or pneumothorax . Heart size is top normal . There is prominence of the main pulmonary artery , more apparent than on prior studies . Hilar contours are normal .
    OUTPUT:
    
No focal consolidation . Mild prominence of the pulmonary artery may relate to pulmonary hypertension .