Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable supine chest film ___ at 04 : 58 is submitted .
    OUTPUT:
    
Hardware is seen overlying the lower cervical and upper thoracic spine which obscures the endotracheal tube on this study . A nasogastric tube is seen coursing below the diaphragm . The left subclavian central line has its tip in the distal SVC unchanged . Patchy opacities are seen throughout the left lung . The right lung is grossly clear . There is persistent opacity in the retrocardiac region with an associated layering effusion likely reflecting compressive atelectasis , although pneumonia or aspiration should also be considered . No large pneumothorax is seen , although the sensitivity to detect a pneumothorax is diminished given supine technique .