Coup de poignard of Michon

Dr Jeremy Jones and A.Prof Frank Gaillard et al.

Coup de poignard of Michon refers to spinal subarachnoid haemorrhage, usually as a result of a spinal AVM.

Presentation is with sudden excruciating back pain, akin to being stabbed with a dagger (poignard = french for dagger). It is the corollary of the thunderclap headache.

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Article information

rID: 6716
Synonyms or Alternate Spellings:
  • coup de poignard of Michon

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Cases and figures

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    Dagger (photo)
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    Arterial perforat...
    Case 1 : Arterial perforation
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