High-field-strength MR imaging was performed in one patient with Chiari III and 19 patients with Chiari II malformations. The MR features were compared with descriptions in the literature and correlated with previously described surgical and postmortem findings and with the results of previous radiologic investigations in this group of patients. Several new observations were apparent from the M...

Technical advances in neurosurgery follow a general philosophy favouring less invasive means of managing surgical disease. We describe a patient with a symptomatic type I Chiari malformation managed by posterior fossa decompression using endoscopic techniques. Technical considerations, including drawbacks of the procedure, are discussed.

published by abartol on Tue, 10/08/2013 11:41am Title A critical analysis of the Chiari 1.5 malformation. Publication Type Journal Article Year of Publication 2004 Authors R Tubbs, S, Iskandar, BJ, Bartolucci, AA, W Oakes, J Journal J Neurosurg Volume 101 Issue 2 Suppl Pagination 179-83 Date Published 2004 Nov ISSN 0022-3085

Cerebrospinal fluid (CSF) flow abnormalities are known to be present in Chiari I malformation and to underlie the origin and progression of associated syringomyelia. The incidence of syrinx formation, however, is variable for unknown reasons. The aim of this study was to investigate whether differences in CSF flow dynamics in patients with Chiari I malformation may account for the different cli...

Abstract Chiari malformation may have possible effect on cognitive and affective demonstrations. It seems necessary to pay attention the underlying anatomical conditions in terms of diagnostic therapeutic aspects when evaluating neuropsychiatric manifestations.

BACKGROUND The Chiari Malformation I (CMI) is a disorder of uncertain origin that has been traditionally defined as downward herniation of the cerebellar tonsils through the foramen magnum. The anomaly is a leading cause of syringomyelia and occurs inassociation with osseus abnormalities at the craniovertebral junction. In contrast to other Chiari malformations, CMI tends to present in the seco...