Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate mild cardiomegaly , improved when compared to prior examinations . There is no pulmonary vascular congestion or evidence of pulmonary edema . The lungs are clear and there is no pneumothorax . Surgical clips are noted in the right upper quadrant . Sclerotic appearance to lower thoracic vertebrae appears to also involve the lumbar spine , though it is not appreciated on most recent radiograph . This can be more completely evaluated with frontal and lateral views of the Lumbar spine .
    OUTPUT:
    
No acute cardiopulmonary process .