Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . Lungs are well - expanded and clear without focal consolidation concerning for pneumonia . This a left perihilar opacity seen on prior chest x-ray is not visualized on the current exam . A right PICC is with tip terminating in the proximal right atrium , near the cavoatrial junction . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . No pleural effusion