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Minim Invasive Neurosurg 1997; 40(2): 55-58
DOI: 10.1055/s-2008-1053416
© Georg Thieme Verlag Stuttgart · New York

Intracavitary Irradiation with Colloidal Phosphorus-32 for Treatment of an Arachnoid Cyst: A New Approach

D. Kondziolka
  • Department of Neurological Surgery, Center for Image-Guided Neurosurgery, Presbyterian University Hospital, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A.
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Publication History

Publication Date:
25 April 2008 (online)

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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

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