• Isabella G McCormack, Lu Xu, John Nerva, John F Berry, Miguel Melgar, Grzegorz Wysiadecki, Jerzy Walocha, Joe Iwanaga, Aaron S Dumont, and R Shane Tubbs.
• Department of Neurosurgery, Tulane University School of Medicine, New Orleans, Louisiana, USA.
• World Neurosurg. 2021 Nov 1; 155: e41-e48.

BackgroundThe blood supply to the skull base is important to surgeons and those performing interventional and diagnostic procedures in this region. However, 1 vessel with a vast distribution in this area, the dorsal meningeal artery (DMA), has had few anatomic studies performed to investigate not only its normal anatomy but also its variations. Therefore the current study aimed to analyze the DMA via cadaveric dissection.MethodsIn 10 adults, latex-injected, cadaveric heads (20 sides), the DMA was dissected using a surgical microscope. This artery and its branches were documented and measured.ResultsA DMA was identified on all sides. In the majority (85%), it was a branch of the meningohypophysial trunk or common stem with either the inferior hypophysial or tentorial arteries and always had branches that traversed the basilar venous plexus. Multiple branches of the DMA were identified and categorized as bony, dural, neural, and vascular.ConclusionsSurgeons operating at the skull base or clinicians interpreting imaging of this area should have a good working knowledge of the DMA and its typical and variant anatomy.Copyright © 2021 Elsevier Inc. All rights reserved.

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