Address for Correspondence: Dr. Joseph Abraham, Department of Anatomy, Government Medical College and Hospital, Chandigarh 32, India, 160030. Phone No.: +919041466127. E-Mail: [email protected] Chiari malformations (CM) are named for Hans Chiari, an Austrian pathologist, who first identified type I-III in 1891. This study was conducted on 400 fetuses obtained from department of Obstetrics an...

Aim. This study aimed to determine the morphometric measurement and spatial orientation of corpus callosum in patients with Chiari type I malformation. Methods. In 28 patients with Chiari type I malformation (14 women and 14 men) and 41 healthy individuals between the ages of 3-65, length and height of corpus callosum as well as the central angle and four angles (A, B, C, D angles) to understan...

The MR findings in a case of a Chiari type I malformation that resolved spontaneously over a 4-year period are presented. Differential growth of the skull and spine might have accounted for the resolution of this anomaly.

We consider parametrically forced Hamiltonian systems with one-and-a-half degrees of freedom and study the stability of the dynamics when the frequency of the forcing is relatively high or low. We show that, provided the frequency is sufficiently high, Kolmogorov-Arnold-Moser (KAM) theorem may be applied even when the forcing amplitude is far away from the perturbation regime. A similar result ...

We report a rare case of partial rhombencephalosynapsis coexistent with Chiari II malformation in a 6-year-old girl and discuss the features of these entities on magnetic resonance imaging.

We present four cases of hydrocephalus caused by occlusion of foramen of Magendie associated with Chiari Type I malformation and syringomyelia. The aim of this study is to evaluate the results of surgical treatment via fourth ventriculostomy with catheter from the fourth ventricle to the upper cervical subarachnoid space. Obstructive tetraventricular hydrocephalus due to occlusion of the forami...

An enhancing nodule was seen on T1-weighted enhanced scans at the tip of the caudally displaced cerebellar vermis in three patients with Chiari II malformation. The enhancing fibrovascular nodule found at the base of the cerebellum in patients with Chiari II malformation represents ectopic choroid plexus and should not be confused with a pathologic mass.

Introduction The type I is the most common Chiari malformation in children. In this condition, the lower part of the cerebellum, but not the brain stem, extends into the foramen magnum at the base of the skull leading to disturbances in cerebrospinal fluid circulation and to direct compression of nervous tissue. Case report We describe a 4-year-old Caucasian female child with febrile seizures...

BACKGROUND Saccadic adaptation corrects errors in saccadic amplitude. Experimentally-induced saccadic adaptation provides a method for studying motor learning. The cerebellum is a major participant in saccadic adaptation. Chiari type II malformation (CII) is a developmental deformity of the cerebellum and brainstem that is associated with spina bifida. We investigated the effects of CII on sacc...