Astrocytomas and Gamma Knife Low grade astrocytoma is one of the
least common brain tumors, while high grade astrocytoma, also
known as glioblastoma multiforme, is the most common malignant
brain tumor. Technical Information including UVA studies The
treatment of astrocytomas, whether low or high grade, is largely
defined by the ability to effectively reduce the tumor burden as
much as possible and to lessen the rate of recurrence. Except in
the case of pilocytic astrocytoma cure is rare. Classically the
goal of reducing tumor burden is obtained by gross total
resection with a margin of "normal" brain when possible and post
operative radiation in the case of more malignant tumors. The
indication for radiation therapy for intermediate grade tumors,
chemotherapy, repeat surgical debulking and other therapies is
dependent upon several factors, many of which are not clearly
defined. Into this cornucopia of choices, Gamma surgery has been
introduced. Intellectually, we have difficulty accepting widely
the applicat