Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Widespread bilateral pulmonary opacities , compatible with known history of PCP pneumonia , remain minimally changed since ___ . A right IJ central venous catheter , endotracheal tube , and orogastric tube are unchanged in position . There is no superimposed pneumothorax or pleural effusion . The heart size remains normal .
    OUTPUT:
    
Widespread pulmonary opacities , compatible with known PCP pneumonia , are unchanged in appearance since ___ .