Table of Contents
Washington University Experience | NEOPLASMS (MENINGIOMA) | Gross Pathology | 13B3 Meningioma, Anaplastic (Case 13) H&E N3 4X
13B3-5 There is widespread dissemination of the sarcoma throughout the subarachnoid space. Areas show tumor infiltration along the Virchow-Robin spaces at all levels of the neuraxis and, in areas, frank neuroaxial invasion. There is a variable degree of glial parenchymal reaction ranging from mild subpial astrocytosis to an exuberant proliferation of fibrillary astrocytes, most pronounced in the areas with severe sarcomatous invasion. ---- This histologic appearance is that of anaplastic meningioma, WHO Grade III.
