Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of the left chest tube with stable size of the left apical pneumothorax . The cardiomediastinal and hilar contours are stable . A left pacemaker is in unchanged position with leads terminating in the right atrium and right ventricle . Atelectasis at the left lung base with a small pleural effusion is stable . There is no focal consolidation concerning for pneumonia .
    OUTPUT:
    
Stable pneumothorax after removal of chest tube .