Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Nasogastric tube has been removed . There is improved aeration of the right lung , with resolution of the prior large effusion . The left lung is also clear . Lungs appear hyperexpanded with flattening of the hemidiaphragms , widening of the retrosternal clear space , and biapical hyperlucency . Moderate cardiomegaly is unchanged . There is chronic mild elevation of the left hemidiaphragm . Rounded opacity in the left perihilar region is stable since ___ and most likely represents a vessel on end . Multilevel small anterior osteophytes are present .
    OUTPUT:
    
1 . No acute cardiopulmonary process . Chronic obstructive airways disease . 2 . Moderate cardiomegaly .