Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tip of the left PICC has not significantly changed in position , and terminates in the low SVC . Lungs are clear of consolidative opacities concerning for pneumonia . Streaky opacities at the left lung base most likely represent atelectasis . There is no sizable pleural effusion or pneumothorax . Heart size is top - normal .
    OUTPUT:
    
No significant interval change in positioning of the PICC which terminates in the low SVC .