Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with prior radiographs on ___ , the left hydropneumothorax is slightly improved . A left pleural catheter remains in place . The right lung is clear without focal consolidation or pleural effusion . Cardiomediastinal silhouette is unchanged . Left bronchial stent remains in place .
    OUTPUT:
    
Slight improvement in left hydropneumothorax .