Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen is a right PICC with tip terminating in the upper SVC . The cardiomediastinal and hilar contours are stable . There is no pleural effusion or pneumothorax . The lungs are well expanded with a vague opacity at the right lung base which may represent an evolving aspiration .
    OUTPUT:
    
Vague right lower lobe opacity , which may represent aspiration in the correct clinical setting .