Chondro-Osseous Metaplasia in Ependymoma: A Rare Histopathological Finding

Figure 1

(a) Coronal T2 WI. (b, c) Axial T2 WI. (d, e) Axial T1 WI. (f, g) Axial DWI and ADC map. (h) Axial T1 postcontrast. (a–h) A large soft tissue mass is noted at the left cerebellopontine angle demonstrating an intermediate hyperintense signal on T2WI and hypointense signal on T1WI with mild restriction on DWI and faint homogenous enhancement after contrast. (a) The mass is causing hydrocephalus which has resolved with bilateral small subdural collections, related to the reduced intracranial pressure, following surgery.

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