Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable AP chest radiograph demonstrates interval removal of endotracheal tube , enteric tube , Swan - Ganz catheter and chest tubes . Lung volumes remain low . Cardiomediastinal and hilar contours are unchanged in appearance . Lung volumes are low with mild vascular congestion . There is no pneumothorax . Blunting of bilateral costophrenic angles may reflect small pleural effusions .
    OUTPUT:
    
Low lung volumes with mild vascular congestion . Blunting of bilateral costophrenic angles may reflect small pleural effusions . No pneumothorax .