• World Neurosurg · Sep 2019

    Case Reports

    Complete Resection of an Intradural Extramedullary Foramen Magnum Cavernous Malformation.

    • Wim Maenhoudt, Giorgio Hallaert, and Jean-Pierre Kalala.
    • Department of Neurosurgery, Ghent University Hospital, Ghent, Belgium. Electronic address: wim.maenhoudt@gmail.com.
    • World Neurosurg. 2019 Sep 1; 129: 200-201.

    AbstractOnly few case reports of intradural extramedullary-located cavernous angiomas are available. This report describes an extra-axial hemorrhagic lesion located on the lateral surface of the medulla oblongata at the foramen magnum. Follow-up magnetic resonance imaing clearly demonstrated growth of the lesion, probably due to repetitive intralesional hemorrhaging. Initially, a right vertebral artery aneurysm or an arteriovenous malformation was suspected. Digital subtraction angiography excluded these differential diagnoses, although doubt remained concerning the possibility of a thrombosed aneurysm. Preoperatively, the lesion did not had the typical macroscopical aspect of a cavernoma and appeared rather as an expansive encapsulated multicystic vascular lesion. Nevertheless, pathologic analysis confirmed the diagnosis of a cavernous hemangioma. Complete microsurgical resection was obtained without neurologic impairment.Copyright © 2019 Elsevier Inc. All rights reserved.

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