Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the ___ examination there has been interval retraction of a right - sided PICC , which now terminates at the upper right atrium . The patient is post median sternotomy . Mild cardiomegaly , central vascular congestion appears stable . Mild - to - moderate pulmonary edema has improved since ___ , particularly in the upper zones . Small bilateral pleural effusions are minimally changed . There is no pneumothorax .
    OUTPUT:
    
1 . Right - sided PICC terminating within the upper right atrium . 2 . Minimally changed bilateral pleural effusions . Superimposed mild - to - moderate pulmonary edema has improved . Positioning of the right - sided PICC was communicated by Dr . ___ with the IV access team ( ___ ) via telephone at 1 :32 p .m . on ___ .