Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The cardiac and mediastinal silhouettes are stable . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . There may be minimal pulmonary vascular congestion . Mild degenerative changes are seen of the spine . No free air is seen beneath the diaphragms .
    OUTPUT:
    
No evidence of free air beneath the diaphragms . No focal consolidation . Possible minimal pulmonary vascular congestion .