Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright chest radiograph demonstrates unchanged position of an endotracheal tube , NG tube , right IJ catheter , and right chest tube . No pneumothorax is seen . The lungs are clear , the pulmonary vasculature is normal . The cardiac silhouette is normal in size , the mediastinal contours are normal .
    OUTPUT:
    
No appreciable right pneumothorax , limited somewhat by semi-upright positioning .