1. Two cases and review of the literature;Aghakhani;Acta Neurochir (Wien),1999
2. MRI of the Ponytail Paraganglioma;Araki;Neuroradiology,1993
3. Castel JP, Cuny E, Boulan P, et al. Paraganglioma of the ponytail clinical aspects and MRI. About a case. Neurosurgery. 1995;41(2):112–115.
4. The intradural Paraganglioma of the terminal filum Case report;Lerman;J Neurosurg,1972
5. Peter C Burger, Bernand W Scheithauer. Anatomopathological atlas of the paraganglioma (Third series). USA; Tumors of the central nervous system of the Institution of the Public Forces: 1994. p. 317–320.