Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph demonstrates a left PICC with the tip in the superior SVC . There is a small left pleural effusion , and no right pleural effusion is seen . The lungs are clear and the cardiac and mediastinal contours are normal . No pneumothorax .
    OUTPUT:
    
Small left pleural effusion with unchanged position of left PICC . No pneumothorax .