Table of Contents
Washington University Experience | NEOPLASMS (MENINGIOMA) | Anaplastic | 26A7 Meningioma, anaplastic & Chondrosarc (Case 26) H&E 8.jpg
n other areas (26A1, arrow), large irregular islands of metaplastic cartilage, resembling chondrosarcoma, predominate. ---- Ancillary data (not shown): The provided immunohistochemically stained section shows reactivity for proliferation marker Ki-67 in a variable proportion of tumor cell nuclei, ranging focally up to approximately 15-20%. According to the provided pathology report, other immunohistochemically stained sections (not provided for review) demonstrate EMA, keratin and S100 to be focally positive.
