Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . The left lung is clear . Persistent right hydropneumothorax and adjacent right lung base atelectasis are possibly mildly larger . Moderate rightward shift of mediastinal structures is unchanged .
    OUTPUT:
    
Persistent right hydropneumothorax and adjacent moderate right lung atelectasis are possibly mildly larger . Moderate rightward shift of mediastinal structures is unchanged .