Traumatic pseudoaneurysm of the middle meningeal artery causing an intracerebral hemorrhage
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Updated: Jun 11, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Wellingson Silva Paiva1, Almir Ferreira de Andrade, Robson Luis Amorim
1Division of Neurosurgery, Department of Neurology, Hospital Das Clinicas, University of Sao Paulo Medical School, 05406000 Sao Paulo, Brazil.
Abstract:
Traumatic aneurysms comprise less than 1% of all intracranial aneurysms. Most of these aneurysms are actually false aneurysms, or pseudoaneurysms, which are caused by the rupture of entire vessel wall layers, with the wall of the aneurysm being formed by the surrounding cerebral structures. Traumatic pseudoaneurysms of the middle meningeal artery are also rare. Only four cases have been reported in the literature with intracerebral hematoma. In this paper, the authors report a case of a patient with a ruptured traumatic pseudoaneurysm of the MMA who presented with an intracerebral hematoma in the left temporal region immediately after trauma; the patient underwent endovascular treatment.
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