Pilomyxoid astrocytoma: expanding the imaging spectrum.

ABSTRACT:

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.

Materials and methods

CT and MR images, pathology reports, and clinical information from 21 patients with pathology-confirmed PMA from 7 institutions were retrospectively reviewed. CT and MR imaging findings, including location, size, signal intensity, hemorrhage, and enhancement pattern, were tabulated.

Results

Patients ranged in age from 9

SUBMITTER: Linscott LL 

PROVIDER: S-EPMC8118951 | biostudies-literature | 2008 Nov

REPOSITORIES: biostudies-literature