Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right PICC is seen in unchanged position . There is increased opacity in the bilateral lung bases compared with prior exam , concerning for aspiration or pneumonia . The opacity at the right lung base demonstrates a well - defined border on one side , which could reflect pleural fluid in the fissure . Bilateral pleural effusions are seen . There is no pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Increased opacity in the bilateral lung bases , concerning for aspiration or pneumonia .