id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
fnp-5817	Lopes Abath Neto, Osorio; Furtado Freitas, Leonardo; Quezado, Martha; Abdullaev, Zied; Aldape, Kenneth	YAP1 fusion-positive ependymoma presenting in an adult with a pigmented phenotype and association with superficial siderosis	2024		.htm	application/xhtml+xml	1683	89	43	YAP1 fusion-positive ependymoma presenting in an adult with a pigmented phenotype and association with superficial siderosis Feel free to add comments by clicking these icons on the sidebar Free Neuropathology 5:23 (2024) Letter YAP1 fusion-positive ependymoma presenting in an adult with a pigmented phenotype and association with superficial siderosis Osorio Lopes Abath Neto1, Leonardo Furtado Freitas2, Martha Quezado3, Zied Abdullaev3, Kenneth Aldape3 Department of Pathology, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, Iowa City, IA 52242, USA Department of Radiology, University of Iowa Hospitals and Clinics, 200 Hawkins Dr, Iowa City, IA 52242, USA Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, 10 Center Dr., Room 2S235, Bethesda, MD, 20892, USA Corresponding author: Osorio Lopes Abath Neto · Department of Pathology · University of Iowa Hospitals and Clinics · 200 Hawkins Dr · Iowa City · IA 52242 · USA osorio-lopesabathneto@uiowa.edu Submitted: 19 August 2024 Accepted: 23 September 2024 Copyedited by: Vanessa S. Goodwill Published: 07 October 2024 https://doi.org/10.17879/freeneuropathology-2024-5817 Keywords: Pigmented, Ependymoma, YAP1, Siderosis, DNA methylation Ependymomas containing pigmented tumor cells are rare, with only 17 reported cases in the literature1,2,3,4, most of which arrising from the fourth ventricle or adjacent locations in the infratentorial compartment. Furthermore, the presence of lipofuscin argues in favor of postmitotic tumor cells that have aged long enough to allow for the accumulation of non-degradable proteins within the cytoplasm.	cache/fnp-5817.htm	txt/fnp-5817.txt