• Delia Cannizzaro, Maria Pia Tropeano, Giovanni Cataletti, Ismail Zaed, Francesco Asteggiano, Andrea Cardia, Maurizio Fornari, and Vincenzo D'Angelo.
• Department of Neurosurgery, Humanitas Clinical and Research Center - IRCCS, Rozzano (MI), Italy.
• World Neurosurg. 2020 Jun 1; 138: 469-473.

BackgroundCervical pial arteriovenous malformation (AVM) is an extremely rare condition that can present with progressive myelopathy or acute hemorrhage (subarachnoid or intramedullary). The classification process is still a topic of discussion, given the limited number of cases described, as well as correct therapeutic management. Here, we present a case of a young female with anterior cervical pial AVM associated with spinal aneurysm.Case DescriptionA 31-year-old female in the fifth month of pregnancy presented to the emergency department for tetraparesis, sphincter disturbances, and burning dysesthesia. Through magnetic resonance angiography, a cervical pial arteriovenous malformation (AVM) with a spinal aneurysm has been diagnosed. After a multidisciplinary consult, a neurosurgical approach has been proposed to minimize the hemorrhagic risk. A laminectomy C2-C4 level was performed, followed by identification of the AVM on the anterior-lateral left-sided surface of the spinal cord. The lesion was associated with a thrombosed aneurysm at the C2 level. Using neurophysiologic monitoring, we performed a temporary clipping of afferent vessels to the AVM. The thrombosed aneurysm was removed. Indocyanine green fluorescein and intraoperative Doppler confirmed complete resolution of AVM. The postoperative course has been regular with no complications recorded.ConclusionsSurgical procedure with perioperative neuromonitoring is an effective way to treat anterior cervical pial AVM associated with spinal aneurysm. A multidisciplinary approach is always suggested.Copyright © 2020 Elsevier Inc. All rights reserved.

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