Hebron boy faces brain surgery

Like many 10–year–old boys, Jordan Minder loves sports. He loves playing football and soccer. He loves watching the Chicago Blackhawks, the Chicago White Sox and WWE wrestling......


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Mechanisms of cerebellar tonsil herniation in patients with Chiari malformations as guide to clinical management

Acta Neurochir (2010) 152:1117–1127.DOI 10.1007/s00701-010-0636-3

The pathogenesis of Chiari malformations is incompletely understood. We tested the hypothesis that different etiologies have different mechanisms of cerebellar tonsil herniation (CTH), as revealed by posterior cranial fossa (PCF) morphology.

Methods In 741 patients with Chiari malformation type I (CM-I) and 11 patients with Chiari malformation type II (CM-II), the size of the occipital enchondrium and volume of the PCF (PCFV) were measured on reconstructed 2D-CT and MR images of the skull. Measurements were compared with those in 80 age- and sex-matched healthy control individuals, and the results were correlated with clinical findings.

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From the Hospital General Universitario de Alicante, Spain, Neurosurgery blog.


Characterization of Cyclic CSF Flow in the Foramen Magnum and Upper Cervical Spinal Canal with MR Flow Imaging and Computational Fluid Dynamics

AJNR Am J Neuroradiol 31:997–1002.DOI 10.3174/ajnr.A1995

CSF flow has been shown to exhibit complex patterns in MR images in both healthy subjects and in patients with Chiari I. Abnormal CSF flow oscillations, according to prevailing opinion, cause syringomyelia and other clinical manifestations that affect some patients with the Chiari I malformation. 

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