Duret haemorrhage

Duret haemorrhage is a small haemorrhage (or multiple haemorrhages) seen in the medulla or pons of patients who are rapidly herniating

Raised supratentorial pressure causes the brainstem and mesial temporal lobes to be forced downwards through the tentorial hiatus. As a result of this shift, it is believed that perforating branches from the basilar artery and/or draining veins are damaged with resultant parenchymal haemorrhage. Usually it is seen in patients with severe herniation for 12-24 hours prior to death 2.

The classical appearance of a Duret haemorrhage is one located in the midline near the pontomesencephalic junction. Often however, these haemorrhages can be multiple or even extend into the cerebellar peduncles.

Usually considered fatal in the majority of cases although occasional cases have been reported to have favourable outcomes 6.

On imaging consider

It was first described by R L Duret in 1955 4.

Stroke and intracranial haemorrhage
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Article information

rID: 7898
Section: Pathology
Synonyms or Alternate Spellings:
  • Duret's haemorrhage
  • Duret's hemorrhage
  • Duret hemorrhage

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