Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP portable radiograph of the chest demonstrates a tortuous aorta , similar to the prior studies . Cardiac size is top normal . The lung fields demonstrate linear opacities in the lower lobes , likely atelectasis . Chain sutures in the right lower lobe is consistent with priot right lower lobe wedge resection . . No pleural effusion or pneumothorax .
    OUTPUT:
    
Linear atelectasis in the lower lobes with no evidence of pneumonia . Tortuous aorta is again seen .