Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small apical right pneumothorax is unchanged measuring 3 mm . Left lower lobe density has slightly increased since this morning and the differential diagnosis still includes atelectasis or pneumonia .
    OUTPUT:
    
1 . Unchanged small apical pneumothorax . 2 . Left lower lobe consolidation which could represent atelectasis or pneumonia that has slightly worsened .