[Occlusion of the vertebral artery (100 personal cases)].

Occlusion of the vertebral artery is usually due to atherosclerosis. According to the site and extension of the arterial lesions 3 clinico-pathologico-angiographic situations can be encountered: segmental occlusion (proximal: V1 or distal: V3, V4), multisegmental (mainly V1-V2, sometimes V1-V2-V3) or extensive (V1 or V4). Subsequent infarctions are localized in ipsilateral cerebellar lobes and ipsilateral lateral part of the medulla oblongata; supra-medullary involvement is rare and indicates a propagation of the vertebral thrombus into the basilar artery.

[Intracranial hypertension and ependymoma of the end of the spinal cord].

A 42 year-old woman was admitted with a subacute intracranial hypertension which improved under medical treatment. Angiographic data and CT scan showed enlarged ventricles. CSF showed 1.