Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are normal . Positioning of medial clavicles and trachea is similar to ___ radiograph , with slight offset of tracheal contour from midline attributed to the presence of scoliosis . The pulmonary vasculature is normal . Lungs are clear except for linear atelectasis or scar at the right base . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality .