If you search for PLGA using the search box in the upper right area of each forum page, you'll see a few threads started by people with polymorphous low-grade adenocarcinoma -- one in 2006, one in 2010 and two in 2013 (here and here).

Click on the names of the people who started those threads and then click "View Profile," which will take you to their contact information. Assuming their email addresses are still good, that would be one way to get in touch with someone who has experienced the specifics of what you're going through.

Certainly the folks here can be helpful in more general areas -- if it turns out that you have to have radiation, for instance, you'll get many suggestions. And several people here have had obturators so could offer advice for any issues with that.

I wish you all the best.