The journal Clinical and Experimental Rheumatology publishes a supplement every year that's just about Behcet's. The latest issue just came out, and you can see the table of contents here:
Except for the first three articles (which are free), you have to pay for the rest. BUT scroll to the bottom and you can download many/most(?) of the abstracts (summaries) from the latest research presented at the 2016 international BD conference. I suggest downloading them ASAP, because I'm not sure how long they'll be available for free.
I haven't had time to read all the abstracts, but some look pretty interesting. Enjoy!