Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right IJ catheter is unchanged in position . There are increasing right mid and lower , and left upper parenchymal opacities , which may represent multifocal pneumonia , however the rapid increased in severity suggests ARDS , aspiration , or hemorrhage . The linear opacity within the left lower lung likely represents subsegmental atelectasis . There is a small right pleural effusion . Cardiac size is difficult to evaluate . There is no pneumothorax .
    OUTPUT:
    
1 . Appropriate position of right IJ catheter . 2 . Increasing bilateral parenchymal opacities , which is concerning for ARDS , aspiration , or hemorrhage , with multifocal pneumonia being less likely .