Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . A small left apical pneumothorax is unchanged . Mediastinal and hilar contours are normal . There is no pleural effusion or focal consolidation . Nondisplaced left lateral sixth rib fracture seen on CT is not appreciated on this radiograph .
    OUTPUT:
    
No change in small left apical pneumothorax .