Neuroradiology of Posterior Third Ventricle Tumors
As a rule, posterior third ventricle tumors present with intraventricular obstructive hydrocephalus, the obstruction being at the junction of the aqueduct and the third ventricle. In a slow-growing neoplasm the sutures may separate, giving rise to long interdigitated sutures, whereas in a rapidly growing tumor there is wide separation with short interdigitations. The “split” sutures have no specific characteristics which indicate the site of obstruction in the ventricular system.
KeywordsArachnoid Cyst Cerebral Angiography Obstructive Hydrocephalus Positive Contrast Wide Separation
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