Complete Resection of an Intradural Extramedullary Foramen Magnum Cavernous Malformation

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via World Neurosurgery

Publication date: September 2019
Source: World Neurosurgery, Volume 129
Author(s): Wim Maenhoudt, Giorgio Hallaert, Jean-Pierre Kalala

Only 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.

 World Neurosurgery

Complete Resection of an Intradural Extramedullary Foramen Magnum Cavernous Malformation

Publication date: September 2019Source: World Neurosurgery, Volume 129Author(s): Wim Maenhoudt, Giorgio Hallaert, Jean-Pierre KalalaOnly 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,...

World Neurosurgery

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