Oligodendroglioma with Granular Cells: A Case Report

Oligodendrogliomas can display a spectrum of histologic and ultrastructural features. The authors describe a case of an oligodendroglioma composed almost exclusively of eosinophilic granular cells. By electron microscopy, the tumor cells had abundant lysosomes containing electron-dense pleomorphic material. Although eosinophilic granular cells can be seen focally in oligodendrogliomas, it is unusual for them to pre-dominate. By light microscopy …