Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No significant interval change . The lungs are clear . No focal consolidation , pulmonary edema , pleural effusion , or pneumothorax . The heart is normal in size . No mediastinal widening . The hila are within normal limits and unchanged . Slight elevation of the left hemidiaphragm is unchanged . Mild degenerative changes with are overall similar .
    OUTPUT:
    
No acute intrathoracic process . No significant interval change .