Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP , upright , and lateral views of the chest were obtained . There is no evidence of free air beneath the diaphragms . No definite pneumomediastinum is seen . There is no evidence of pneumothorax . No focal consolidation or pleural effusion is seen . The patient is rotated to the left . The lateral view is optimal due to obliquity . There is mitral annulus calcification .
    OUTPUT:
    
No evidence of free air beneath the diaphragms . No definite pneumothorax .