The purpose of this study was to document the normal values of corpus callosum
sub-regions and lateral ventricles using MRI in healthy and Alzheimer disease geriatric females and males in our population and to identify the sex differences.
6] Typical patterns of brain involvement in NMOSD, although not pathognomonic, include lesions of the dorsal medulla/area postrema, periependymal regions in the brainstem, diencephalic structures, or cerebral hemispheres or long lesions spanning much of the corpus callosum
or corticospinal tracts, corresponding to regions of high AQP4 expression.
During study, T2-W and FLAIR MRI images showed that maximum MS lesions were seen in brain stem, corpus callosum
, periventricle, basal ganglia, cerebellum and spinal cord of PMS patients.
Imaging the corpus callosum
, septum pellucidum and fornix in children: normal anatomy and variations of normality.
Sperry and his colleagues experimented on making an incision on the corpus callosum
, so that the left brain could not communicate with the right and vice versa.
Caption: Figure 3: Axial DWI image showing diffusion restriction in deep white matter of bilateral fronto-temporo-parieto-occipital lobes and corpus callosum
with sparing of subcortical U fibers.
8,9) Areas of infarct in the corpus callosum
were also observed in the present case on MRI.
In addition, the involvement of the splenium of the corpus callosum
and the posterior limb of internal capsule was common in our patients, suggesting another characteristic neuro-radiological feature of KSS patients.
The most important complications of corpus callosum
transection are mutism, the disconnection syndrome and hemiparesis (35).
Major radiological diagnosis was leukodystrophy in 30% patients followed by cerebral atrophy in 16% patients, congenital malformation (agenesis of corpus callosum
, hydrocephalus, dandy walker variant, cerebral aqueduct stenosis etc) in 15% patients and nonspecific findings (basal ganglia calcifications, arachnoid cysts, hemorrhagic infarct) in 6% patients.
This included areas--such as the corpus callosum
fibres that connect the brain's two hemispheres--that are unconnected to the brain's visual systems.
5,6 Primary lymphoma mostly starts from cerebral hemisphere, and 70% ~ 80% are supratentorial focuses locating in deep white matter, callosum
, basal ganglia and thalamus, some of which also involves pia mater and ependyma.