Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A moderate to large right apical lateral pneumothorax has slightly enlarged since the 2 : 25 p .m . examination . There is no mediastinal shift . The heart size is normal . The hilar and mediastinal contours remain within normal limits .
    OUTPUT:
    
Continual increase in size of a moderate to large right apicolateral pneumothorax . No mediastinal shift . The initial findings were discussed by Dr . ___ with Dr . ___ ___ telephone at the time of interpretation , 4 :20 p .m . , ___ .