[Myxopapillary ependymoma of the os sacrum].

A sacro-presacral myxopapillary ependymoma with a long anamnesis is described. A total of 46 other cases have heretofore been reported in the literature, which were systematized in this paper from a clinical as well as developmental point of view. Surgical interventions performed in the early and later phases of the disease resulted in restoration to health and subjective alleviation, respectively.