Background: Aneurysms of meningeal middle artery (MMA) are extremely rare. These aneurysms are of two types: true aneurysm and pseudoaneurysm. The true type is usually seen with pathologic conditions. Pseudoaneurysms, on the other hand, are associated with a skull fracture. Epilepsy caused by MMA aneurysm has never been described to our knowledge. We report a case of true aneurysm isolated from MMA revealed by epilepsy.
Case Description: A 57-year-old patient with a history of high blood pressure developed epilepsy which was treated by valproic acid. Initial scalp electroencephalography (EEG) showed seizure activity arising from the right temporal area. Epilepsy had become drug-resistant. Cerebral angiography revealed an aneurysm of the right middle meningeal artery without any other intraparenchymal anomaly. The interrogation did not reveal any history of family aneurysm. The patient underwent surgery with coagulation of the aneurysm and the MMA. The aneurysm was intradural in contact with the temporal cortex, and the surrounding brain tissues were preserved. The operative follow-up was favorable with amelioration of convulsions with a single antiepileptic. We planned to stop antiepileptic treatment according to electroencephalograms.
Conclusions: Aneurysms of the MMA are rare. Their mode of revelation by seizures is unusual. The factors of rupture are not known. When isolated, their physiopathology is identical to that of the aneurysms of the Willis polygon. Their management uses the same techniques as for other cerebral aneurysms.
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| http://dx.doi.org/10.4103/sni.sni_159_17 | DOI Listing |
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