Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are within normal limits with increased distension of the azygos vein , reflecting increased intravascular volume . There is no pleural effusion or pneumothorax . The lungs are well - expanded . Nodular opacities primarily at the lung bases bilaterally have progressed , especially in the left lung , consistent with an infectious process . There has been interval removal of the right internal jugular venous catheter . The Dobhoff tube remains in stable position terminating at the pylorus . The upper abdomen is otherwise unremarkable in appearance .
    OUTPUT:
    
Interval significant worsening of nodular opacities bilaterally , especially in the left lung , most consistent with an infectious process . This may represent PCP , although the progression is more rapid than expected . Viral pneumonia is also a possibility .