Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of a right thoracostomy tube . A new small right apical pneumothorax is demonstrated , measuring up to 1 .6 cm in thickness . There is no shift of the mediastinum . The left lung remains clear . A trace left pleural effusion is present . The mediastinal contour is unchanged .
    OUTPUT:
    
New small right apical pneumothorax .