Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . No focal consolidation , pleural effusion or evidence or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Hilar contours are stable . There has been no significant interval change since the prior study .
    OUTPUT:
    
No acute cardiopulmonary process . No significant change since the prior study .