Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright chest radiograph ___ at 06 : 10 is submitted .
    OUTPUT:
    
Tracheostomy tube , right subclavian central line and nasogastric tube are unchanged in position . The left costophrenic angle is not entirely included . Lungs are somewhat diminished in volume with patchy opacity at the bases suggestive of atelectasis . No pulmonary edema or pneumothorax is appreciated . No large effusions . Small metallic densities over the right hemithorax consistent with bullet fragments .