Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is stable . Right chest tube is no longer seen . Previously seen moderate right pleural effusion has substantially decreased in size , a loculated component persists . There is increased airspace opacification in the mid to lower right lung as compared to prior examination . The left lung remains clear with minimal basilar atelectasis . There is no left effusion . A small right apical pneumothorax was not clearly present on the prior study .
    OUTPUT:
    
1 . Interval removal of right chest tube , with evidence of a small right apical pneumothorax . 2 . Decreased right pleural effusion . 3 . Increased right mid / lower lung opacification is nonspecific , and my represent edema , pneumonia , hemorrhage or other alveolar process .