Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is of normal size with normal cardiomediastinal contours . There is subsegmental atelectasis at the left lung base . No focal consolidation , pleural effusion , or pneumothorax . Sternotomy wires and mediastinal clips are intact and stable in position .
    OUTPUT:
    
No acute cardiopulmonary process . No pneumothorax as queried .