Non-aneurysmal perimesencephalic SAH

Case contributed by Dr Saqba Farooq


50 year old male presenting with acute onset severe headache .

Prepontine and right ambient cisternal SAH.

Case Discussion

Non-aneurysmal perimesencephalic haemorrhage is a distinct type of subarachnoid haemorrhage where the source of bleeding is venous. Blood is confined to the basal cisterns around the midbrain.

Cerebral angiogram is negative for a aneurysm.

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Case information

rID: 10489
Published: 16th Aug 2010
Last edited: 30th Sep 2015
Inclusion in quiz mode: Included

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