Seven single voxels, approximately 8 cc in volume, were positioned within the medial frontal gray matter, the left frontal white matter, left parietal white matter, the right temporal lobe at the superior temporal gyrus, the left basal ganglia, left cerebellar hemisphere
(gray and white matter), and the cerebellar vermis, respectively (Figure 1).
More precisely, these cerebellar regions are lateral portions of cerebellar hemispheres
and the dentate nucleus, which project to the cerebral cortex much more than any other cerebellar region, and thus, the term "neocerebellum" is used (10).
4, 5) Severe hypogenesis to complete agenesis of the cerebellar vermis is characteristic with midline apposition of the cerebellar hemispheres
Brain magnetic resonance imaging (MRI) revealed enlarged bilateral cerebellar hemispheres
with evidence of hypointensity of the affected thoracic vertebral segment on T1 image and hyperintensity on the T2 image (Figure).
1) confirmed the Dandy-Walker malformation on the basis of an absent vermis, cystic dilatation of the fourth ventricle, an enlarged posterior fossa, upward displacement of the torcula and splayed hypoplastic cerebellar hemispheres
Transcerebellar: + cerebellar hemispheres
and vermis, TCD, cisterna magna.
Brain capillary telangiectasias are typically found in the pons, (1,2,4,5) but are also commonly located in the medulla, caudate nucleus, cerebrum, (3) cerebellar hemispheres
, and in the spinal cord.
5 mm to 2 mm were seen within the white matter of the cerebral and cerebellar hemispheres
, the brainstem, and also sparsely within the cortex and basal ganglia.
Like the cerebral hemi spheres, the cerebellar hemispheres
are formed by paired dorsal swellings that grow individually and are aligned at the midline.
Diffusion-weighted images from MRI 5 days after admission revealed symmetric diffusion hyperintensity within the bilateral cerebellar hemispheres
, bilateral caudate heads, and hippocampi (Figure 2).
There were several smaller cystic lesions within the cerebellar hemispheres