Skew deviation as presenting ocular sign of a third ventricle colloid cyst.
A heretofore undescribed case of mesencephalic skew deviation in association with a third ventricle colloid cyst is reported. Evidence is provided tha the oculomotor symptoms were caused by irritation of midbrain tegmentum structures, which proved to be critical for vertical eye movements.
D000328:Adult; D001927:Brain Diseases / Q000150:complications / Q000175:diagnosis; D002552:Cerebral Ventricles; D003560:Cysts / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D013285:Strabismus / Q000209:etiology*