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Washington University Experience | NEOPLASMS (EMBRYONAL) | ETMR - Embryonal Tumor Multilayered Rosettes | 4A3 ETANTR (Case 4) H&E 100X 1.jpg
In some areas, the tumor has a primitive appearance, composed predominantly of small hyperchromatic cells with minimal cytoplasm and numerous mitoses. Some of these cells are arranged surrounding a central lumen with multiple layers of tumor cells and high mitotic activity; these structures are consistent with multilayered rosettes.( H&E)
