Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear atelectasis noted in the left lingular lobe and no evidence of pneumonia . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Calcifications noted in the descending aorta .
    OUTPUT:
    
Linear atelectasis of the left lingular lobe . No evidence of pneumonia .