Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are stable . There is redemonstration of biapical scarring . The lungs are hyperexpanded , consistent with chronic lung disease . There is re- demonstration of atelectasis and pleural thickening at the left lung base with abnormal bulging of the left diaphragmatic pleural surface which appears chronic . Increased interstitial lung markings likely relate to chronic lung changes . There is new increased opacity at the right lung base which may be related to atelectasis , however pneumonia can not be excluded . There is no pneumothorax . Previously identified nodule over the left fourth rib does not appear to lie within the parenchyma .
    OUTPUT:
    
New increased right basilar opacity could reflect atelectasis , however pneumonia can not be excluded .