Anything alarming in CT images? Is it known as a particular sign?
White cerebellum sign, seen in the images, is a grave brain injury prognosticating irreversible brain damage in many cases.
What additional finding may be seen on brain angiography in these cases?
Poor or absent flow in bilateral supraclinoid ICA, anterior and middle cerebral arteries may be seen.
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.