Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal lung volumes . There is no pleural effusion , focal consolidation or pneumothorax . The hilar and mediastinal silhouettes are unchanged . The descending aorta appears tortuous . Linear opacity in the left lung likely represents atelectasis or scarring . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .