Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right pigtail catheter in the lung base is in unchanged expected position . Small amount of right pleural effusion is similar to prior . A tiny right apical pneumothorax is unchanged . Overall , aeration of the lungs is similar to recent prior examination . Right lower lobe collapse is unchanged . Bilateral calcified pleural plaques are again noted .
    OUTPUT:
    
1 . Unchanged small right hydropneumothorax with pigtail catheter in expected unchanged position . 2 . Ongoing right lower lobe collapse