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Washington University Experience | NEOPLASMS (PINEAL) | Papillary Tumor Pineal Region (PTPR) | 7B1 Papillary Tumor Pineal Region (PTPR, Case 7) H&E 3.jpg
7B1-5 H&E stained sections show multiple fragments of a neuroepithelial tumor with solid and papillary growth patterns. The solid areas of the tumor demonstrate numerous rosettes, mostly perivascular pseudorosettes and frequent ependymal-like true rosettes. The tumor cells have an epithelial appearance and are polygonal to columnar with abundant eosinophilic cytoplasm.
