Journal of Yeungnam Medical Science

Case report

Extramedullary tanycytic ependymoma of the lumbar spinal cord: Dong Ja Kim, Man-Hoon Han, SangHan Lee; Yeungnam Univ J Med. 2020;37(2):128-132. Published online November 11, 2019; DOI: https://doi.org/10.12701/yujm.2019.00367

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Tanycytic ependymoma is a rare variant of ependymoma that commonly affects the cervical and thoracic spinal cord. It usually arises as intramedullary lesions, and extramedullary cases are extremely rare. We report a case of a 44-year-old woman who was diagnosed with tanycytic ependymoma in her lumbar spine at level 2-3. The tumor mass developed in an intradural extramedullary location. Histopathologically, tanycytic ependymoma can be misdiagnosed as schwannoma or pilocytic astrocytoma. Immunohistochemical findings such as strong positivity for glial fibrillary acidic protein, perinuclear dot-like positive patterns for epithelial membrane antigen, and focal positivity for S-100 are helpful in diagnosing tanycytic ependymoma. It is important to be aware of this rare tumor to ensure appropriate patient management and accurate prognosis.

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Whorling Sclerosing Ependymoma of the Cervical Spinal Cord Presenting Tanycytic Histopathologic Features: A Rare Case Report
Cumhur Kaan Yaltırık, Emin Oğuzcan Yamaner, Öznur Suakar, Sezin Gürkan, Aydın Sav, Uğur Türe
International Journal of Surgical Pathology.2023; 31(2): 239. CrossRef
Stretched intradural extramedullary tanycytic ependymoma of the thoracic spine
Nicola Montemurro, Daniele Lorenzini, Valerio Ortenzi, Jacopo Giorgetti
Surgical Neurology International.2022; 13: 426. CrossRef
Intradural extramedullary tanycytic ependymoma of the cervical spine: A case report
Mahmoud M. Taha, Mazen M. Taha, Mohamed Kh. Elbadawy, Mohammad Ezzat
Interdisciplinary Neurosurgery.2021; 26: 101319. CrossRef

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