Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph . Surgical clips are now present over the left lateral aspect of the thorax from wound debridement and thoracotomy . Surgical drain is present in the soft tissues of the chest wall . A left pleural drain is now seen with decreased effusion relative to yesterday 's CT . Pulmonary vascular congestion within the left lung likely represents a component of reexpansion pulmonary edema . The effusion layerings superior to the aortic know , also better seen on prior CT . There is no pneumothorax . The heart size is normal . The right lung is clear .
    OUTPUT:
    
Small residual pleural effusion with a left pleural pigtail drain in place . No pneumothorax .