Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided pacemaker device is noted with single lead terminating in the right ventricle . Heart size is top normal . The aorta remains tortuous . Mediastinal and hilar contours are stable . Pulmonary vasculature is normal . Apart from minimal atelectasis in the left lung base , lungs are clear without focal consolidation . Calcified granuloma in the left upper lobe is unchanged . No pleural effusion or pneumothorax is seen . There are multilevel moderate degenerative changes within the thoracic spine .
    OUTPUT:
    
No radiographic evidence for pneumonia .