Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright and lateral views of the chest were obtained . Apparent enlargement of the cardiac silhouette is likely related to the AP technique . Cardiomediastinal contour is stable . Lungs are clear . There is no pulmonary edema . There is no pleural effusion or pneumothorax . Prominent anterior osteophytes are noted along the thoracic spine .
    OUTPUT:
    
No substantial change compared to the prior examination and no evidence of pneumonia .