Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Redemonstrated is an unchanged 2 .9 cm left apical pneumothorax . There is no evidence of tension physiology . No focal consolidation , pleural effusion or pulmonary edema is seen . The heart size is normal . Mediastinal contours are normal .
    OUTPUT:
    
Unchanged 2 .9 cm left apical pneumothorax . No evidence of tension physiology .