Search Results

You are looking at 1 - 4 of 4 items for :

  • "posterior fossa extra-axial cyst" x
Clear All
Restricted access

Emanuele La Torre, Aldo Fortuna and Emanuele Occhipinti

tumors of infancy and childhood. Am J Roentgen 112 : 296 – 305 , 1971 Wolpert SM: Angiography in posterior fossa tumors of infancy and childhood. Am J Roentgen 112: 296–305, 1971 26. Wolpert SM , Haller JS , Rabe EF : The value of angiography in the Dandy-Walker syndrome and posterior fossa extra-axial cysts. Am J Roentgen 109 : 261 – 272 , 1970 Wolpert SM, Haller JS, Rabe EF: The value of angiography in the Dandy-Walker syndrome and posterior fossa extra-axial cysts. Am J Roentgen 109: 261–272, 1970

Restricted access

Edwin G. Fischer

following trauma. 5, 25, 27 The malformation has also been found incidentally at autopsy. 27 Although the skull contour in early months of life may appear normal, enlargement of the posterior fossa is generally obvious on physical examination and plain skull x-ray films. The posterior fossa cyst is associated with an apparent failure of the tentorium to descend to its normal position, and with it the transverse sinuses, an event which may also occur in posterior fossa extra-axial cysts. 14 This elevated position of the sinuses can be detected by transillumination of

Restricted access

Studies of the third circulation

Amipaque CT cisternography and ventriculography

Burton P. Drayer and Arthur E. Rosenbaum

-Walker versus posterior fossa extra-axial cyst; delayed communication of cyst) information in a single, rapidly performed study. In addition, the circulation of the CSF, the mechanism of the hydrocephalus, and the functioning of a therapeutic shunt may also be defined by this single test. It appears that the use of pneumoencephalography, angiography, and radionuclide studies may be obviated in the diagnostic evaluation of most brain cysts. Acknowledgments We wish to acknowledge Jeane Dobrinski for her secretarial assistance, the Departments of Neurology and

Restricted access

Dandy-Walker syndrome

Clinical analysis of 23 cases

Raymond Sawaya and Robert L. McLaurin

rule out posterior fossa extra-axial cysts. The position of the posterior inferior cerebellar artery was indicative on angiography when it was displaced downward and sometimes backward, with upward displacement of the cerebellar blush ( Fig. 1 ). Fig. 1. Case 22. Left vertebral angiography showing a large avascular space in the posterior fossa with elevation of the posterior cerebral arteries and downward displacement of the posterior inferior cerebellar artery (arrow) . Computerized tomography was used only twice for diagnostic purposes, and four other