“ After about 2 years of age, the pattern of injury is the same as that seen in an adult. There is relative sparing of the thalamic nuclei f...
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After about 2 years of age, the pattern of injury is the same as that seen in an adult. There is relative sparing of the thalamic nuclei from ages 1-2 years. The corpora striata, hippocampi and cortex are most affected.
CT
• Bilateral low-density basal ganglia, cerebral oedema.
• Occasionally, there is reversal of the normal pattern of grey and white matter attenuation (white matter appears more dense than the grey matter)—the ‘reversal sign’.
• Diffuse cortical oedema with sparing of the cerebellum causes the ‘white cerebellum sign’.
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