Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . There is no pleural effusion , focal consolidation or pneumothorax . Hilar and mediastinal silhouettes are unchanged . Heart size is top normal . Tortuous aorta is re-demonstrated . Bibasilar opacities likely represent atelectasis .
    OUTPUT:
    
No acute cardiopulmonary process .