Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior radiograph , there has been removal of the left chest wall port and catheter . The right PICC line terminates in the low SVC . The airway is midline and the cardiac and mediastinal contours are normal aside from a mildly tortuous descending aorta . There is mild increase in interstitial markings bilaterally , possibly indicating mild pulmonary edema or an atypical infectious process . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Right PICC terminating in the lower SVC and increased interstitial markings bilaterally possibly indicating atypical infectious process or mild pulmonary edema .