Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate streaky opacity at the left lung base likely secondary to atelectasis . No consolidation convincing for pneumonia is identified . Cardiomediastinal and hilar contours appear within normal limits . There is no evidence of pulmonary edema . There is no pleural effusion or pneumothorax . Visualized osseous structures demonstrates no acute abnormality . No air under the right hemidiaphragm is identified . A left chest pacer defibrillator device is identified , its leads which appear intact and in appropriate position within the right atrium and ventricle . Two biliary stents are noted projecting over the right upper quadrant .
    OUTPUT:
    
Atelectasis with no focal consolidation convincing for pneumonia .