Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest PA and lateral radiograph demonstrates unremarkable mediastinal , hilar , and cardiac contours . Bilateral low lung volumes identified with minimal atelectatic changes present in the bilateral bases . Small left and possibly trace right pleural effusion present . Right - sided Port - A - Cath with tip terminating at the cavoatrial junction . No pneumothorax present .
    OUTPUT:
    
Small left and possibly trace right pleural effusion .