Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Interval increase in moderate - to - large size left pneumothorax with flattening of left hemidiaphragm , concerning for tension . No significant mediastinal shift . No change in left and right pigtail catheters and left port tip is in right atrium . Right upper lobe air - fluid levels appear unchanged and are suggestive of cavitary lesion . Assessment of heart size , mediastinal contour and hila is limited secondary to pleural parenchymal disease . No subcutaneous emphysema .
    OUTPUT:
    
Interval increase in moderate - to - large sized left - sided pneumothorax with flattening of left hemidiaphragm concerning for tension . Results were conveyed via telephone to the ICU attending at 11 :45 AM within 5 minutes of observation of findings and Dr .___ by Dr .___ on ___ at 12 :45 PM .