[Spinal cord metastasis of a glioblastoma].

Two years after surgery followed by chemotherapy and radiotherapy of a temporal glioblastoma, a 51 year-old woman presented pluriradicular symptoms ascribed to compression of the left part of the cauda equina. The second operation confirmed the metastatic nature of the compression, and histological investigation proved the similarity of the neoplastic tissues taken from the medullary and cerebral regions. The authors stress the rarity of the clinical forms of medullary metastases of glioblastomas. The factors conducive to this fluid effusion are trauma and ventricular effraction by the original tumour. Neither screening nor prophylactic irradiation seem necessary in view of the low frequency of these metastases.