Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate right pneumothorax , stable in comparison to prior study from the day before . Otherwise , the left lung appears well expanded . There are no focal consolidations . The cardiomediastinal silhouette is normal with no significant leftward shift . There is mild left diaphragmatic depression . Osseous structures are grossly normal .
    OUTPUT:
    
Stable right pneumothorax .