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1. Wilkins RH. Intraspinal cysts. In: Wilkins RH, Rengachary SS (eds.) Neurosurgery. New York: McGraw-Hill 1996:3509-3519.
2. Freidberg SR, Fellows T, Thomas CB, Mancall AC. Experience with symptomatic spinal epidural cysts. Neurosurgery 1994;34:989-993. 3. Krings T, Lukas R, Reul J, et al. Diagnostic and therapeutic management
of spinal arachnoid cysts. Acta Neurochir (Wien) 2001;143:227-235. 4. Liu JK, Cole CD, Kan P, Schmidt MH. Spinal extradural arachnoid
cysts: clinical, radiological, and surgical features. Neurosurg Focus 2007;22:1-5.
5. Kikuta KI, Hojo M, Gomi M, Hashimoto N, Nozaki K. Expansive du-raplasty for the treatment of spinal extradural arachnoid cysts: case re-port. J Neurosurg Spine 2006;4:251-255.
6. Hamamcioglu MK, Kilincer C, Hicdonmez T, Simsek O, Birgili B, Co-banoglu S. Giant cervicothoracic extradural arachnoid cyst: case report. Eur Spine J 2006;15:595-598.
6XU\DQLJW\DV:$ULÀQ00XOWLSOHVSLQDOH[WUDGXUDODUDFKQRLGF\VWV
occurring in a child: case report. J Neurosurg 2007;106:158-161. 8. Rabb CH, McComb JG, Raffel C, Kennedy JG. Spinal arachnoid cysts
in the pediatric age group: an association with neural tube defects. J Neurosurg 1992;77:369-372.
9. Chang IC, Chou MC, Bell WR, Lin ZI. Spinal cord compression caused by extradural arachnoid cysts: clinical examples and review. Pediatr Neurosurg 2004;40:70-74.
10. Miyamoto M, Kim K, Matsumoto R, Isobe M, Isu T. Utility of preoper-ative magnetic resonance imaging mielography for identifying dural defects in patients with spinal extradural arachnoid cysts: case report. Neurosurgery 2006;59:941.
11. Hatashita S, Kondo A, Shimizu T, Korosu A, Ueno H. Spinal extradur-al arachnoid cyst: case report. Neurol Med Chir 2001;41:318-321. 12. Safriel YI, Sanchez G, Jhaveri HS. Giant anterior cervicothoracic
arach-noid cyst. Spine 2002;27:366-368.
13. Miravet E, Sinisterra S, Birchansky S, et al. Cervicothoracic extradural arachnoid cyst: possible association with obstetric brachial plexus pal-sy. J Child Neurol 2002;17:770-772.
14. Choi JY, Kim SH, Lee WS, Sung KH. Spinal extradural arachnoid cyst. Acta Neurochir (Wien) 2006;148:579-585.
15. Prevo RL, Hageman G, Bruyn RP, Broere G, van de Stadt J. Extended extradural spinal arachnoid cyst: an unusual cause of progressive spas-tic paraparesis. Clin Neurol Neurosurg 1999;101:260-263.
16. Campos WK, Linhares MN, Brodbeck IM, Ruhland I. Anterior cervi-cal arachnoid cyst with spinal cord compression. Arq Neuropsiquiatr 2008;66:272-273.
