Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph demonstrates unchanged right internal jugular central venous catheter and endotracheal tube , which terminates at the level of the clavicles . The lung volumes are again low , with partial collapse of the right middle and lower lobes . Left lung is grossly clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Continued partial collapse of the right middle and lower lobes with no evidence of pulmonary edema .