How do you approach treatment of brain metastases in a patient with Behçet's disease?

I have never encountered such a patient. I would think the first thing to do is to make sure what one sees on MRI are indeed brain metastases, rather than areas of inflammation. Otherwise if the brain mets are suitable for radiosurgery, I would proceed. Just be mindful that the patient may be more likely to need dexamethasone and work with the patient’s primary physician in monitoring the steroid requirements