Ependymoma: internal correlations among pathological signs: the anaplastic variant.

@article{Schiffer1991EpendymomaIC,
  title={Ependymoma: internal correlations among pathological signs: the anaplastic variant.},
  author={Davide Schiffer and Adriano Chi{\`o} and Humberto Cravioto and Maria Teresa Giordana and Antonio Migheli and Riccardo Soffietti and Maria Claudia Vigliani},
  journal={Neurosurgery},
  year={1991},
  volume={29 2},
  pages={206-10}
}
In a series of 298 cases of ependymoma, survival analysis identified some prognostic histological factors but failed to demonstrate a worse survival for the anaplastic variant diagnosed with the common criteria used for assessing anaplasia in primitive brain tumors. This finding suggests that either anaplastic ependymoma does not exist, or that the established criteria are not useful in its identification. To solve these problems, the association of histological, immunohistochemical, and… CONTINUE READING