Summary
¶ Carotid rete mirabile (CRM) consists of arterial channels between the internal and external carotid arteries in some lower mammals. It is a very rare pathological condition in humans. We report two patients who presented with clinical signs of subarachnoid haemorrhage (SAH). Their sudden-onset SAH was thought to have been due to rupture of cerebral aneurysms, however, angiograms revealed an abnormal vascular network around the cavernous sinus. To our knowledge, 2 of 7 reported patients with CRM presented with SAH, however, only one of these patients had a probable cerebral aneurysm. We suggest that in patients with CRM, the rupture of anastomosing vessels be a probable cause of SAH.
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Kino, T., Fuwa, I., Kitano, I. et al. Carotid Rete Mirabile Presenting Subarachnoid Haemorrhage. Report of Two Cases. Acta Neurochir (Wien) 141, 1183–1186 (1999). https://doi.org/10.1007/s007010050416
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DOI: https://doi.org/10.1007/s007010050416