Computed tomographic signs of the Chiari II malformation. III: Ventricles and cisterns

Radiology
T P NaidichJ B Naidich

Abstract

In patients with Chiari II malformations, the fourth ventricle is usually not visualized or appears small; the third ventricle is relatively small, typically has a large massa intermedia, and only occasionally exhibits parasellar and/or posterior third ventricular diverticula. The lateral ventricles are usually asymmetrically dilated, show medial pointing of the floor of the body near the foramen of Monro, flattening of the superolateral angles, and frequent absence of the septum pellucidum. Prior to and after shunting, the interhemispheric fissure may be either obliterated, or widely open with serrations corresponding to the interdigitated gyri of the cerebral hemispheres. Prominent confluent cisterns at the hind end of the third ventricle in patients with ventricular collapse may represent the CT equivalent of the dilated pericallosal, ambient and retropulvinaric cisterns seen in patients with hydrocephalus and poor ventricular filling at pneumography.

Citations

May 2, 2012·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Niels GeerdinkReinier A Mullaart
Jan 1, 1985·Neuroradiology·H HaginoA Sugitani
Jan 1, 1983·Neuroradiology·T P NaidichK H Fulling
Jan 1, 1986·Neuroradiology·D H PretoriusM L Manco-Johnson
Jan 1, 1986·Neuroradiology·D S Babcock
Jul 4, 2007·Topics in Magnetic Resonance Imaging : TMRI·Alexandra T Vertinsky, Patrick D Barnes
Jan 1, 1991·Pediatric Radiology·S C KaoJ Goedken
Aug 28, 2012·Pediatric Neurosurgery·Kanwaljeet Garg, Ashok K Mahapatra
Mar 1, 1986·Journal of Neurosurgery·J L VenesJ T Latack
Jun 1, 1984·Surgical Neurology·S S Gebarski, H S Greenberg
Apr 1, 2003·Medical Journal, Armed Forces India·Vinay Maurya, Hariqbal Singh
Mar 1, 1992·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·J R RugeD G McLone
Nov 21, 2007·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Elka MillerCharles Raybaud
Jun 15, 2017·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Mohammadali M ShojaR Shane Tubbs
Aug 1, 2009·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Suzanne K WongRoy A Filly
May 12, 2017·Journal of Korean Neurosurgical Society·Tae-Young JungKyu-Chang Wang

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