Table of Contents

Washington University Experience | NEOPLASMS (GLIAL) | Oligodendroglioma - IDH1 mutant, del 1p19q - Grade 3 | 14B Oligodendroglioma, Gr3 (Case 14)IDH 1

An antibody for the R132H mutation of IDH1 is positive in most of the tumor cells. ---- Not shown: Immunostaining for Ki-67 demonstrates a proliferation rate of up to 10%. ---- Fluorescent in situ hybridization (FISH) showed deletions of both 1p and 19q.

---