Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . An AICD is unchanged in position with lead tip extending to the region of the right ventricle . Clips are noted in the left upper quadrant . Lung volumes are low . There is linear opacity in the lower lungs , left greater than right , likely representing plate - like atelectasis . No convincing signs of pneumonia or CHF . No large effusion or pneumothorax is seen . The cardiomediastinal silhouette is stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Mild bibasilar atelectasis , no convincing signs of pneumonia .