Web Service has image "field" how to save to disk?

I have to access a web service where I pass in a product number and it produces an XML result with an /image section where it has a long string (base64?)    I am trying to call the web service and save the image to the OS.

  I am trying to get the result into a variable and save it to disk with  the itemno.jpg as the name

This is a sample file I get back..

<NewDataSet>
  <Table>
    <ITEMNO>2065</ITEMNO>
    <Image>/9j/4QAYRXhpZgAASUkqAAgAAAAAAAAAAAAAAP/sABFEdWNr ...  removed since too long for post  ...</Image>
    <ImageDate>2015-04-15T00:00:00+00:00</ImageDate>
  </Table>
</NewDataSet>