Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal shadow is unchanged . No airspace opacification . No pneumothorax . No pulmonary edema . Mild density seen in the left costophrenic angle which may represent atelectasis or a small pleural effusion . Suture material projecting over the right hilar area . Narrowing of the subglottic trachea is probably due to recent intubation .
    OUTPUT:
    
The cardiomediastinal shadow is unchanged . No airspace opacification . No pneumothorax . No pulmonary edema . Mild density seen in the left costophrenic angle which may represent atelectasis or a small pleural effusion . Suture material projecting over the right hilar area . Narrowing of the subglottic trachea is probably due to recent intubation .