Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pneumothorax . Left PICC line tip in the low SVC . Left pneumonectomy , shift of mediastinal structures to the left , stable . Improved right basilar opacity . Stable subtle nodular opacities and mild interstitial thickening right upper chest . Stable indeterminate nodularity left mid chest .
    OUTPUT:
    
No pneumothorax . Stable indeterminate nodularity left mid chest . Mildly improved right basilar , stable right upper chest opacity