Abstract
The angiographic observation of a radiculomedullary artery variation found in a patient with a spinal cord vascular malformation is presented. A posterior radiculomedullary artery arising from the left L2 intersegmental artery had a duplicated origin. Two radicular trunks were seen aiming towards the neural foramen: a dominant anterior one providing a retrocorporeal artery and the anterior limb of the radicular artery, and a smaller posterior one branching off a prelaminar artery and the posterior limb of the radicular artery. The two limbs then joined to continue as a single posterior radiculomedullary artery, which participated in the vascularization of the vascular malformation. The clinical and developmental aspects of this exceptional variant are discussed.
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Conflict of interest
P. Gailloud and M. Pearl: Research grant recipients (paid to institution), Siemens Medical, Germany. P. Gailloud: consultant, honorarium (paid to self), Codman Neurovascular, USA, and Penumbra, USA. L. Gregg, Z. Katz, J. Myseros: none.
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Gailloud, P., Gregg, L., Katz, Z. et al. Duplicated origin of a radiculomedullary artery supplying a perimedullary arteriovenous fistula: angiographic observation and developmental considerations. Anat Sci Int 89, 191–194 (2014). https://doi.org/10.1007/s12565-013-0218-6
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DOI: https://doi.org/10.1007/s12565-013-0218-6