title: Dilatation of cerebral ventricles in patients with rheumatoid vertical atlanto-axial subluxation.
abstract: Twenty-four patients with seropositive rheumatoid arthritis, 12 of them with anterior atlanto-axial subluxation alone and 12 with vertical atlanto-axial subluxation, were examined by echo-encephalographic measurement of the width of third and lateral cerebral ventricles. The 12 patients with anterior atlanto-axial subluxation showed normal values for the third and the lateral ventricles. Ten of the 12 patients with vertical atlanto-axial subluxation had increased width of third and lateral ventricles, indicating hydrocephalus.
mesh_terms: D000368:Aged; D001268:Atlanto-Axial Joint; D002552:Cerebral Ventricles / Q000473:pathology*; D004108:Dilatation, Pathologic; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology*; D007592:Joint Diseases / Q000150:complications*; D004204:Joint Dislocations; D008297:Male; D008875:Middle Aged