Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable chest radiograph demonstrates unremarkable mediastinal and hilar contours . Heart size is mildly enlarged . Bilateral low lung volumes with hazy pulmonary vascualture suggesting mild pulmonary edema . No large pleural effusion or pneumothorax evident . Endotracheal tube is in a standard position . Nasogastric tube with tip below the diaphragm and crossing midline .
    OUTPUT:
    
Well - positioned endotracheal and nasogastric tubes . Mild pulmonary edema .