Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single AP upright portable view of the chest was obtained . Overlying soft tissue partially obscures the left lung base and there are slightly low lung volumes . Given the above , no focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac silhouette is top normal to mildly enlarged , but may be accentuated by AP technique . The mediastinum and hilar contours are unremarkable .
    OUTPUT:
    
Top normal to mildly enlarged cardiac silhouette , may be accentuated by AP technique . No focal consolidation .