[Syringomyelia and normal pressure hydrocephalus (author's transl)].

A case of syringomyelia with coexisting hydrocephalus is reported and a pathogenic relationship between both conditions is discussed. Gardner proposed that anomalies at the exit of the fourth ventricle produce a communicating syringomyelia. Hakim and Adams maintain that normal pressure hydrocephalus can aggravate this condition by a hydraulic pressure effect which can be stopped by the insertion of a ventriculoatrial shunt with improvement in the clinical picture. This has been our experience in the case reported.