title: Intradural retroclival chordoma.
abstract: A 43-year-old woman presented with dizziness, ataxia and right hearing difficulty. Her magnetic resonance images demonstrated an inhomogeneously contrast-enhanced large tumor growing into right cavernous sinus and Meckel's cave located totally within intradural retroclival region. She underwent retromastoid suboccipital craniotomy to resect the tumor mass and adjuvant gamma knife radiosurgery for remnant tumor at 1 month after operation. Adjuvant radiosurgery after surgical excision seems to be effective for the treatment of intradural extraosseous chordomas.
authors.affiliation: Department of Neurosurgery, Inje University School of Medicine, Pusan Paik Hospital, Busan, Korea.
authors.forename: Yeon Soo
authors.initials: YS
authors.lastname: Choo
authors.forename: Sang Wook
authors.initials: SW
authors.lastname: Joo
authors.forename: Seung Jin
authors.initials: SJ
authors.lastname: Noh
authors.forename: Sun-Il
authors.initials: SI
authors.lastname: Lee