Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The pleural drainage catheter at the right lung base is unchanged in position . The partially visualized heart appears mildly enlarged , unchanged compared to most recent prior studies . The partially visualized mediastinal silhouette also appears unchanged . The right hemithorax is near completely opacified , unchanged compared to prior radiograph from ___ and increased compared to prior radiograph from ___ , consistent with known pleural effusion . Lucency in the right lung apex without evidence of lung markings consistent with known pneumothorax . There is mild leftward mediastinal shift . There is no pulmonary edema or focal consolidation in the left lung .
    OUTPUT:
    
Large right hydropneumothorax , unchanged compared to prior radiograph from ___ .