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Washington University Experience | NEOPLASMS (NEURONAL) | DNET | 8B1 DNET (Case 8) area A H&E 1

8B1-4 The specimen consists of multiple fragments of a mildly cellular neoplasm with a microcystic and patterned mucin rich background involving primarily cortical gray matter. Tumor cells are comprised of small, oligodendrocyte-like cells aligned in a columnar fashion along bundled axons or small blood vessels, with scattered "floating neurons" within the mucin pools or intermixed with the oligodendroglial-like cells. Focal oligodendroglioma like areas are present, with sheets of oligodendroglial-like cells in a myxoid, cystic background, interspersed with delicate, chicken-wire vasculature and rare calcifications.

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