Spinal tumors and hydrocephalus.

Spinal tumors associated with hydrocephalus is a rare condition. The clinical, radiological and pathological features of 6 such cases are reported and correlated with those already published. Hyperproteinorrhachia and arachnoiditis, with basal or cortical blockage of the cerebrospinal fluid pathways have been consistently found and the subsequent hydrocephalus seems to be unrelated to the level, location or the pathology of the spinal lesion.