Sample MR images obtained acutely from patients 1 to 6: axial T2 weighted (DWI in case 4) on the left, coronal FLAIR on the right of each panel. Sample.

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Presentation transcript:

Sample MR images obtained acutely from patients 1 to 6: axial T2 weighted (DWI in case 4) on the left, coronal FLAIR on the right of each panel. Sample MR images obtained acutely from patients 1 to 6: axial T2 weighted (DWI in case 4) on the left, coronal FLAIR on the right of each panel. All images show changes of acute vascular insult centred on brain stem structures—haemorrhagic in cases 1 and 5, and ischaemic in cases 2, 3, 4 and 6—together with varying degrees of oedema extending into the midbrain. No supratentorial lesions of any kind are present on any of the images. P Garrard et al. J Neurol Neurosurg Psychiatry 2002;73:191-194 ©2002 by BMJ Publishing Group Ltd