How would you approach radiation for node-positive prostate cancer in a patient with an aortic and/or common iliac arterial aneurysm not meeting criteria for surgical repair?

Literature has shown a correlation of brain irradiation associated with the development of intracranial aneurysms - I believe that is the concern this question is raising.

The good news is that other studies have shown that, at least for the aorta, existing large artery aneurysms are not worsened by ...