Apr 25, 2022 · Oligodendroglioma, IDH mutant and 1p/19q codeleted is a diffusely infiltrating glial neoplasm with IDH1 or IDH2 mutation and 1p / 19q whole arm codeletion

Jul 6, 2021 · Hemangioblastoma is a benign, slowly growing, highly vascular neoplasm containing neoplastic stromal cells which usually involves the cerebellum, brainstem or spinal cord.

Immunostains, routine stains and CD markers at PathologyOutlines.com

Apr 4, 2024 · Ependymoma is a neuroepithelial tumor with ependymal differentiation that most commonly has ventricular involvement and arises in the cerebrum and spinal cord

Apr 6, 2023 · Olig2 (tumor nuclei are negative), EMA (dot-like cytokeratin expression seen in other ependymoma variants is often absent) Negative for cytokeratin CAM 5.2, CK5/6, CK7 and CK20 (Appl Immunohistochem Mol Morphol 2013;21:485, …

Aug 4, 2022 · GFAP (variable) Olig2 IDH1 Marker of infiltrating gliomas, both astrocytic or oligodendroglial (Curr Neurol Neurosci Rep 2013;13:345) Recognizes only the most common mutation (IDH1 R132H, which accounts for about 90% of all glioma associated IDH mutations) (Neuro Oncol 2014;16:1478)

Oct 29, 2021 · Pilocytic astrocytoma - grade I is a circumscribed, well differentiated astrocytic neoplasm with piloid (hair-like) processes, most commonly occurring in children and young adults.

Aug 14, 2023 · Gliomas are the most common form of primary tumors of the central nervous system (CNS); this group includes adult and pediatric type diffuse gliomas, circumscribed gliomas and ependymal tumors.

Dec 23, 2024 · Pineocytoma is a well differentiated pineal parenchymal neoplasm composed of isomorphic cells typically forming large pineocytomatous rosettes

Diffuse hemispheric glioma H3 G34 mutant is a malignant, infiltrative, hemispheric, IDH wild type glioma with a G34R/V mutation in H3F3A.