Periaqueductal dysfunction (the Sylvian aqueduct syndrome): a sign of hydrocephalus?
نویسنده
چکیده
A patient with hydrocephalus due to aqueductal occlusion is described in whom the Sylvian aqueduct syndrome appeared during a sudden increase in intracranial pressure. The ocular signs resolved completely when the hydrocephalus was relieved. Marked dilatation of the posterior part of the third ventricle and of the rostral aqueduct with axial displacement of these structures was demonstrated radiologically. It is suggested that the ocular signs in this case were the result of periaqueductal dysfunction due to assimilation and dilatation of the aqueduct, with secondary tentorial block. This abnormality may be the cause of the similar abnormalities commonly found in noncommunicating hydrocephalus in both infants and adults.
منابع مشابه
Benign aqueduct stenosis in adults.
A series of 55 cases is described in which hydrocephalus associated with non-neoplastic narrowing of the Sylvian aqueduct produced symptoms for the first time in adult life. The clinical features of the patients and their investigation are described and discussed.
متن کاملRadionuclide cisternography in diagnostics of obstruction hydrocephalus in introduced ventriculoperitoneal shunt.
BACKGROUND To confirm or exclude a diagnosis of internal obstruction hydrocephalus in an 8-year old girl with an introduced ventriculoperitoneal (V-P) shunt. CASE REPORT Establishing the V-P shunt is indisputably the route of choice in non-communicating hydrocephalus. The existence of a V-P shunt, however, is connected with numerous risks, especially of injuries, infection as well as increase...
متن کاملThe Sylvian aqueduct syndrome and neurofibromatosis.
A 23-year-old man initially presented with the Sylvian aqueduct syndrome and subsequently developed cutaneous neurofibromata. The case is reported and the possibility that these represent manifestations of the same genetic abnormality is discussed.
متن کاملLoss of Developmental Factors Impairs SCO Formation and Function
lifeline for supplying the brain with essential nutrients and growth factors throughout development and into adulthood. At the same time, the brain exercises constant control to ensure that the flow of CSF is homeostatic. CSF is secreted by the choroid plexus and moves rostrocaudally through the ventricles and into the subarachnoid space before being drained into the venous circulation (80). Fa...
متن کاملEnlargement of the Sylvian aqueduct: a sequel of head injuries.
A review of pneumoencephalography and clinical data in a large group of patients has shown that severe head injury may be followed by a consistent clinical-radiological syndrome. A prolonged period of unconsciousness is a characteristic initial feature of this syndrome. Clinically there is ataxia and dysarthria and, often, abnormal movements and oculomotor dysfunction. The characteristic radiol...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Journal of neurology, neurosurgery, and psychiatry
دوره 37 1 شماره
صفحات -
تاریخ انتشار 1974