This is very much possible. While I haven't done it myself, this dashboard below does exactly what you're asking.
My assumption is that it uses Background Images and maps the locations on the body to link with the data involved in the other chunk of the dashboard.
Best of Luck,
That's very hot
thanks - Just need to learn on how to do that now
Here is a tool http://drawingtool.powertoolsfortableau.com/ my company built out to help with the polygon drawing portion of the equation. It's free, so if you don't care for it then you can pretend this never happened :-). It requires the image to be hosted online but otherwise is pretty straight forward. The rest of the process should more or less be covered here. Background Images
Hope this helps,
Here's a great viz from Tableau Public that may be some help to you:
I have also used the Interworks drawing tool, which is very useful. There is also this blog post that may be of help:
Thanks Will and Zack - i will take a look at those infos