Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is dextroscoliosis of the thoracic spine . The patient is status post median sternotomy . A 7 mm nodule overlying the right lower hemi thorax is stable dating back to ___ . On today 's exam the lungs appear clear . There is no pleural effusion . There is no pneumonia , no pneumothorax and no pulmonary edema . A sclerotic focus is noted in a mid thoracic vertebral body measuring approximately 7 mm but this is also stable dating back to ___ .
    OUTPUT:
    
No evidence of pneumonia .