Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left PICC ends in the right atrium . There is no focal opacity , pulmonary edema , pleural effusion or pneumothorax . The cardiac and mediastinal contours are stable .
    OUTPUT:
    
1 . The left PICC ends in the right atrium . For positioning in the low SVC retraction of 3 cm is recommended . 2 . No pulmonary edema .