Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal , with the heart in the upper limits of normal . Mild atherosclerotic calcification is seen in the aortic knob . The lungs are clear , without consolidation , pulmonary edema , pleural effusion or pneumothorax . Linear lingular atelectasis is seen .
    OUTPUT:
    
No acute cardiopulmonary pathology .