The common causes are an acute haematoma, oedema following trauma, abscess, or tumour. The Duret haemorrhage is demonstrated at CT or MRI. It usually indicates a fatal outcome. The mechanism is uncertain but is probably caused by the displacement of the brainstem stretching and lacerating pontine perforating branches of the basilar artery; venous infarction may play a role.
What is Duret referring to when he discusses hemorrhage?
<s>[INST] Answer the question truthfully, you are a medical professional. This is the question: What is Duret referring to when he discusses hemorrhage? [/INST] \n The common causes are an acute haematoma, oedema following trauma, abscess, or tumour. The Duret haemorrhage is demonstrated at CT or MRI. It usually indicates a fatal outcome. The mechanism is uncertain but is probably caused by the displacement of the brainstem stretching and lacerating pontine perforating branches of the basilar artery; venous infarction may play a role.</s>