When treating trigeminal neuralgia with SRS, are there vascular constraints or concern for late aneurysm?

The incidence of cerebral aneurysms after stereotactic radiosurgery (SRS) for trigeminal neuralgia (TGN) is extremely rare. High-dose radiation (60 - 90 Gy) delivered to local microvasculature can theoretically cause focal vessel wall weakening, elastin degeneration, or radiation angiopathy leading ...