Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A tracheostomy is in unchanged expected position . A right approach central venous catheter is in appropriate unchanged position . Median sternotomy wires are grossly intact . Post - surgical changes from recent left thoracotomy with areas of pleural air are unchanged . Chest wall air is also similar to prior . Aeration of the bilateral lung bases is unchanged compared to recent prior examination .
    OUTPUT:
    
No significant change compared to recent prior .