Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest film ___ at 07 :59 is submitted .
    OUTPUT:
    
Interval appearance of small left apical lateral pneumothorax . Left basilar chest tube remains in place . Right lung remains grossly clear with the exception of a nodular opacity at the right base which may represent a granuloma given stability since ___ . Cardiac and mediastinal contours are stable .