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Intracranial cavernous angiomas (cavernomas, cavernous hemangiomas, cavernous malformations) usually cause intraparenchymal hemorrhage but are rarely described as a cause of isolated subarachnoid hemorrhage (SAH).[2,6,10] Some cases of intracranial cavernous angiomas presenting with isolated SAH have been reported.[3,7,9,10,12] However, cavernous angiomas presenting with so-called angiographically negative aneurysmal-like SAH are rare. To our knowledge, only one case of cavernous angioma presenting with perimesencephalic SAH has been reported.[11] We describe a case of cavernous angioma presenting with SAH, which was diffusely distributed in the basal cisterns and mimicked intracranial aneurysm rupture.

surgical neurology international

Cavernous angioma presenting with subarachnoid hemorrhage which was diffusely distributed in the basal cisterns and mimicked intracranial aneurysm rupture