Dilatation of Cerebral Ventricles in Patients with Rheumatoid Vertical Atlanto-axial Subluxation

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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.

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