Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient remains intubated . An endotracheal tube terminates approximately 3 cm above the carina . An orogastric tube courses into the stomach . The right hemidiaphragm is now somewhat obscured with new vague opacification projecting over the right lower lung but sparing the right cardiac border . Elsewhere , the lungs remain clear . There is no definite pleural effusion . There is no pneumothorax .
    OUTPUT:
    
Developing vague opacity at the right lung base suggesting atelectasis , aspiration , or possibly pneumonia , involving a portion of the right lower lobe . Short - term follow - up radiographs are suggested .