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Anatomical progression of the Chiari II malformation

✍ Scribed by John R. Ruge; Jeff Masciopinto; Bruce B. Storrs; David G. McLone

Publisher
Springer
Year
1992
Tongue
English
Weight
736 KB
Volume
8
Category
Article
ISSN
0256-7040

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✦ Synopsis

To evaluate whether anatomic change of the relationship of the Chiari II malformation and the cranial base was occurring, 22 children with meningomyelocele had serial MRI scans reviewed. A ratio (B/A) was established between the distance from the foramen magnum to the caudalmost portion of herniated cerebellum (B) and the diameter of the foramen magnum (A) and this ratio was compared on serial MRI scans. Eighteen children had an increase in the B/A ratio, two children had a decrease, and two had no change. This indicates that continuous anatomic change of the Chiari II malformation and the skull base is occurring. Clinical deterioration in the older child may be explained by a combination of compressive and traction forces due to this change.

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Absence of the falx cerebelli in a Chiar
Absence of the falx cerebelli in a Chiari II malformation
✍ R. Shane Tubbs; Stephen E. Dockery; George Salter; Scott Elton; Jeffrey P. Bloun πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 298 KB

## Abstract After a review of the literature, we found no descriptions of the falx cerebelli in the Chiari II population. Other dural partitions in this group have been well‐described. The aim of our study was to radiologically and at autopsy search for the falx cerebelli in this population. We ret