Focal thinning of the posterior corpus callosum: Normal variant or post-traumatic?

Brain Injury ◽  
2011 ◽  
Vol 25 (10) ◽  
pp. 950-957 ◽  
Author(s):  
Miriam H. Beauchamp ◽  
Michael Ditchfield ◽  
Cathy Catroppa ◽  
Michael Kean ◽  
Celia Godfrey ◽  
...  
Brain Injury ◽  
1993 ◽  
Vol 7 (4) ◽  
pp. 363-366 ◽  
Author(s):  
G. Deloche ◽  
B. Bussel ◽  
A. Tougeron ◽  
P. Denis ◽  
B. Viteau

Author(s):  
E. M. Koludarova

Introduction. Currently, there is no scientifically based diagnostic complex for diffuse axonal brain injury (DAI) which allows to reveal its morphological substrate and determine the time elapsed after it, especially in the early post-traumatic period. Aim. Identification of morphological changes in the corpus callosum in various post-traumatic periods after DAI. Material and methods. The material of the study is the corpus callosum of victims who died from traumatic brain injury with DAI within the first hour (group I, n=25), in the period from 1 to 12 hours (group II, n=30) and in the period from 12 to 48 hours (group III, n=17) before the death. The control group of the study comprises the corpus callosum (n=25) of those who died from various causes of non-violent and violent death (without any head trauma). Discussion of results. The main diagnostic criterion for DAI is represented by hemorrhages in the substance of the corpus callosum truncus. The proposed complex of morphological changes in the neuron-glio-vascular module will allow to determine the time elapsed after DAI. Conclusions. DAI as a special type of traumatic brain injury is manifested by a pathognomonic complex of pathomorphological changes in the deep structures of the brain, including the corpus callosum. Objectification of the time elapsed after DAI should be based on a comparative assessment of all morphological features of the identified neuron-glio-vascular module, while its individual features can not be considered as diagnostic.


2000 ◽  
Vol 42 (01) ◽  
pp. 8 ◽  
Author(s):  
S Overmeyer ◽  
A Simmons ◽  
J Santosh ◽  
C Andrew ◽  
S C R Williams ◽  
...  

2000 ◽  
Vol 59 (3) ◽  
pp. 150-158 ◽  
Author(s):  
Nadia Ortiz ◽  
Michael Reicherts ◽  
Alan J. Pegna ◽  
Encarni Garran ◽  
Michel Chofflon ◽  
...  

Patients suffering from Multiple Sclerosis (MS) have frequently been found to suffer from damage to callosal fibers. Investigations have shown that this damage is associated with signs of hemisphere disconnections. The aim of our study was to provide evidence for the first signs of interhemispheric dysfunction in a mildly disabled MS population. Therefore, we explored whether the Interhemispheric Transfer (IT) deficit is multi-modal and sought to differentiate two MS evolution forms, on the basis of an interhemispheric disconnection index. Twenty-two patients with relapsing-remitting form of MS (RRMS) and 14 chronic-progressive (CPMS) were compared with matched controls on four tasks: a tachistoscopic verbal and non-verbal decision task, a dichotic listening test, cross tactile finger localization and motor tapping. No overall impairment was seen. The dichotic listening and lexical decision tasks were the most sensitive to MS. In addition, CPMS patients' IT was more impaired and was related to the severity of neurological impairment. The different sizes of the callosal fibers, which determine their vulnerability, may explain the heterogeneity of transfer through the Corpus Callosum. Therefore, evaluation of IT may be of value as an index of evolution in MS.


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