Duplication of the internal maxillary artery: Anatomical and clinical considerations

Irene E Harmsen; Cha-Ney Kim; Eef J Hendriks; Antti Lindgren; Timo Krings

doi:10.1177/15910199221142094

Duplication of the internal maxillary artery: Anatomical and clinical considerations

Interv Neuroradiol. 2022 Nov 27:15910199221142094. doi: 10.1177/15910199221142094. Online ahead of print.

Authors

Irene E Harmsen¹, Cha-Ney Kim², Eef J Hendriks¹, Antti Lindgren^{1

3

4}, Timo Krings¹

Affiliations

¹ Division of Interventional Neuroradiology, Department of Diagnostic Radiology, 26625Toronto Western Hospital, University of Toronto, Toronto, ON, Canada.
² Division of Neuroradiology, Department of Diagnostic Radiology, University of British Columbia, Vancouver, BC, Canada.
³ Department of Clinical Radiology, 60650Kuopio University Hospital, Kuopio, Finland.
⁴ School of Medicine, Faculty of Health Sciences Institute of Clinical Medicine, 220881University of Eastern Finland, Kuopio, Finland.

PMID: 36437640
DOI: 10.1177/15910199221142094

Abstract

Duplication of the internal maxillary artery (IMAX) results from a failed regression of either the embryological superficial or deep ring and is reported to be exceedingly rare. We present a patient with this rare anatomical variant who was treated by endovascular technique in the clinical context of an acute oropharyngeal hemorrhage.

Keywords: Internal maxillary artery; anatomic variation; cerebral angiography; duplication; fenestration.