Bryan Morales-Vargas, Hassan Saad, Daniel Refai, Matthew Schniederjan, Zied Abdullaev, Kenneth Aldape, Malak Abedalthagafi
In the evolving landscape of ependymoma classification, which integrates histological, molecular, and anatomical context, we detail a rare case divergent from the usual histopathological spectrum. We present the case of a 37-year-old man with symptomatic spinal cord compression at the L3-L4 level. Neuroradiological evaluation revealed an intradural, encapsulated mass. Histologically, the tumor displayed atypical features: bizarre pleomorphic giant cells, intranuclear inclusions, mitotic activity, and a profusion of eosinophilic cytoplasm with hyalinized vessels, deviating from the characteristic perivascular pseudorosettes or myxopapillary patterns...
April 19, 2024: Neuropathology: Official Journal of the Japanese Society of Neuropathology