White cerebellum sign

White cerebellum sign, also called reversal sign or dense cerebellum sign, is encountered when there is a diffuse decrease in density of the supratentorial brain parenchyma, with relatively increased attenuation of the thalami, brainstem and cerebellum. This sign indicates irreversible brain damage and has a very poor prognosis, which is why radiologists must be aware of this sign 2.


It is associated with:


There are different theories proposed for this sign:

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Article information

rID: 17586
Section: Signs
Tag: signs, refs
Synonyms or Alternate Spellings:
  • Reversal sign
  • Dense cerebellum sign

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Cases and figures

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