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Washington University Experience | NEOPLASMS (GLIAL) | Ependymoma, myxopapillary | 13A4 Ependymoma, myxopapillary (Case 13) H&E 6.jpg
Collagen balloons are numerous and distinctive. Very focally, an intermediate layer of mucoid degeneration, as highlighted by alcian blue-PAS stain, is also noted.
