A 42-year-old female presented with subarachnoid hemorrhage (SAH), presumably from a radiation-induced anterior communicating artery aneurysm. Six years earlier, she had undergone radiation treatment for an optic glioma that was diagnosed based on imaging criteria. The aneurysm was successfully clipped, and the optic glioma was biopsied to verify the diagnosis histologically. Radiation-induced cerebral aneurysms often manifest with a fatal SAH. These aneurysms typically develop in the field of radiation and are diagnosed a mean of 8.52 years after radiation. Rarely, the aneurysm sac thromboses spontaneously. Clipping or coiling of the aneurysm can be an effective treatment.
KEYWORDS
Intracranial aneurysm - subarachnoid hemorrhage - optic glioma - radiation therapy
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Robert F SpetzlerM.D.
c/o Neuroscience Publications, Barrow Neurological Institute
350 West Thomas Road; Phoenix, AZ 85013-4496
Email: neuropub@chw.edu
