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Washington University Experience | NEOPLASMS (PINEAL) | Pineocytoma | 6B1 Pineocytoma (Case 6) H&E 7.jpg
6B1-4 Microscopic examination of the "pineal region tumor" shows a neoplasm consisting of small, bland, monomorphic cells in a fibrillary background. Relatively large zones of fine, fibrillary processes surrounded by neoplastic cell nuclei, "pineocytomatous rosettes", are present. Mitoses are difficult to find.
