Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . There is plate - like bibasilar atelectasis . A single - lead pacer projects over the left chest wall with lead tip extending to the right ventricle region . The heart size is top normal . There is no effusion or pneumothorax . No definite signs of pneumothorax or pulmonary edema . Mediastinal contour is reflective of an unfolded thoracic aorta . Aortic knob calcifications are present . The imaged osseous structures are intact .
    OUTPUT:
    
No signs of pneumonia or CHF . Bibasilar plate - like atelectasis .