White cerebellum sign of hypoxic-ischaemic brain injury
History of trauma.
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There is generalised decrease in the density of the supratentorial brain due to oedema with a relatively normal cerebellum in this patient with history of trauma.
This normal cerebellum paradoxically appears dense or white, labelled as 'white cerebellum sign' and conveys bad prognosis.
2 case questions available
This is a classic case of 'white cerebellum sign' associated with severe pediatric head trauma, apart from other etiologies like non-traumatic hypoxia, status epilepticus or child abuse like 'smothering'.
Many etiologies have been postulated like vasospasm of supraclinoid middle cerebral arteries, or preferential oxygenation of posterior circulation, during severe hypoxic insult, but certainly it reflects a global severe hypoxic response.