Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left moderate apical pneumothorax is unchanged , measuring 2 .8 cm . Left small pleural effusion is unchanged since earlier chest x-ray , but new since ___ . Right apical line is not due to pneumothorax but emphysematous bulla as shown on chest CT of ___ . There is no right - sided pneumothorax . Mediastinal and cardiac contours are normal .
    OUTPUT:
    
1 . Unchanged moderate left apical pneumothorax . 2 . Small left pleural effusion is new since ___ , stable from this morning . 3 . There is no right apical pneumothorax . The apical line is explained by emphysematous bulla .