Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate right - sided hydropneumothorax after chest tube removal . The remainder of the right lung remains well aerated . Since the prior examination there is opacification demonstrated within the left lower lobe . There is a trace left pleural effusion . There is no evidence of left pneumothorax . The cardiomediastinal and hilar contours are normal . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . Moderate right hydropneumothorax after chest tube removal ; status post right lower lobectomy . 2 . New patchy opacification within the left lower lobe may be due to acute aspiration or atelectasis . Recommend short - term interval followup to exclude development of pneumonia if infectious symptoms are present .