Anaplastic ependymoma (histology)

Case contributed by A.Prof Frank Gaillard

Presentation

Posterior fossa tumour.

Patient Data

Age: 30 years
Pathology

Cellular tumour with prominent nuclear pleomorphism and numerous cells undergoing mitosis (bottom right corner) as well as apoptosis. Perivascular pseudorosettes (Figure 2) are present with endothelial hyperplasia. This is an immunohistochemically confirmed ependymoma. Aforementioned features warrant a designation of anaplastic ependymoma, although the clinical significance of this is uncertain. 

Case courtesy of Associate Professor Renate Kalnins. 

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Case information

rID: 51746
Case created: 6th Mar 2017
Last edited: 6th Mar 2017
Inclusion in quiz mode: Excluded

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