BACKGROUND AND PURPOSE:Pilomyxoid astrocytoma (PMA) is a recently described variant of pilocytic astrocytoma (PA) with unique clinical and histopathologic characteristics. Because the histopathology of PMA is distinct from that of PA, we hypothesized that PMAs would display distinctive imaging characteristics. We retrospectively reviewed the imaging findings in a large number of patients with PMA to identify these characteristics.

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Recipient ofa Certificate of Merit award for a scientific exhibit at the 1991 RSNA scientific assembly.

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