Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post previous median sternotomy and coronary artery bypass surgery and recent cervical spine surgery . Heart is upper limits of normal in size with left ventricular configuration , and mediastinal and hilar contours are within normal limits . Within the lungs , there are no focal areas of consolidation to suggest pneumonia . Small rounded density in right lung base may reflect a calcified granuloma or a vessel viewed end on .
    OUTPUT:
    
No radiographic evidence of pneumonia .