Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable view of the chest demonstrates a 1 .5 cm apical right pneumothorax , not definitely present on the radiograph from ___ at 16 :40 PM . Right subcutaneous emphysema as well as basilar atelectasis is essentially unchanged . The cardiomediastinal contour is stable . Right pigtail is unchanged in position .
    OUTPUT:
    
1 .5 cm right apical pneumothorax . Otherwise , little interval change .