Clival chordomas: management and follow-up results in a series of 29 consecutive patients

P. Mortini, N. Boari, P. Castellazzi & M. Giovanelli
Chordomas are rare tumors that origin from embryonic remnants of the primitive notochord (Batsakis, 1979). Their incidence is around 0,05/100000/year. They account less than 1% of central nervous system tumors (Weber et al., 1995) and they account for <5% of all bone tumors.[for full text, please go to the a.m. URL]