1. Chiechi MV, Smirniotopoulos JG, Jones RV (1995) Intracranial subependymomas: CT and MR imaging features in 24 cases. AJR Am J Roentgenol 165(5):1245–1250.
https://doi.org/10.2214/ajr.165.5.7572512
2. Dorfer C, Tonn J, Rutka JT (2016) Ependymoma: a heterogeneous tumor of uncertain origin and limited therapeutic options. Handb Clin Neurol 134:417–431.
https://doi.org/10.1016/b978-0-12-802997-8.00025-6
3. Ellison DW, Korshunov A, Witt H (2016a) Ependymoma, RELA fusion-positive. In: Louis DN, Ohgaki H, Wiestler OD, Cavenee WK (eds) WHO classification of tumours of the central nervous system, Revised 4th edn. IARC, Lyon, p 112
4. Ellison DW, McLendon R, Wiestler OD, Kros JM, Korshunov A, Ng H-K, Witt H, Hirose T (2016b) Anaplastic ependymoma. In: Louis DN, Ohgaki H, Wiestler OD, Cavenee WK (eds) WHO classification of tumours of the central nervous system, Revised 4th edn. IARC, Lyon, pp 113–114
5. Ellison DW, McLendon R, Wiestler OD, Kros JM, Korshunov A, Ng H-K, Witt H, Hirose T (2016c) Ependymoma. In: Louis DN, Ohgaki H, Wiestler OD, Cavenee WK (eds) WHO classification of tumours of the central nervous system, Revised 4th edn. IARC, Lyon, pp 106–111