Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest ___ 841 are submitted .
    OUTPUT:
    
A left - sided pacer remains in place with the leads unchanged in position and projecting over the expected locations of the right atrium and right ventricle , respectively . Overall cardiac and mediastinal contours are stable . Lungs appear well inflated without evidence of pulmonary edema , focal airspace consolidation or pneumothorax . No pleural effusions . Degenerative changes in the thoracic spine with no acute bony abnormality identified .