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DOI: 10.1055/s-2008-1053416
Intracavitary Irradiation with Colloidal Phosphorus-32 for Treatment of an Arachnoid Cyst: A New Approach
Publication History
Publication Date:
25 April 2008 (online)
Abstract
Intracavitary irradiation is reported as an additional treatment for intracranial arachnoid cysts that do not communicate with the subarachnoid space. A 46-year-old woman with a large suprasellar arachnoid cyst that had enlarged over a 4-year interval presented with new onset headaches. Stereotactic intracavitary irradiation was performed using colloidal phosphorus-32 as an alternative to craniotomy or insertion of a shunt. Total regression of the cyst occurred within one month with resolution of her headaches. After three years of follow-up, imaging studies showed only an empty sella appearance, and no cyst recurrence. No early or delayed morbidity occurred. Intracavitary irradiation may be a useful therapy for arachnoid cysts, in an attempt to alter the biology of the cyst lining.
Key words
Arachnoid cyst - Radioactive phosphorus - Stereotactic surgery