Summary
During a dissection of both upper extremities, an abnormally high origin of the radial a. was found on each side. However, the arterial patterns were not the same. On the right side, the radial a. arose 2 cm above the junction of the two roots of the median n. On the left side, the radial a. arose from the brachial a. 3 cm distal to the origin of the profunda brachii a. The course of these arteries in the forearm were normal. However, in the hand, on the right side, the contributions of the radial and ulnar aa. to the superficial and deep palmar arches were, unusually, equal. On the left side, the superficial palmar arch was formed as usual mainly by the ulnar a. and the deep palmar arch was formed mainly by the radial a. The high origin of the radial aa. in this case is explained on the basis of the embryologie development and is distinguished from the other common arterial variations in the upper limb.
Résumé
Au cours de la dissection des deux membres supérieurs d’un même sujet, une a. radiale anormale d’origine haute était trouvée de chaque coté. Toutefois, la distribution artérielle n’était pas la même. Du coté droit, l’a. radiale naissait 2 cm au dessus des deux racines du n. médian. Du coté gauche, l’a. radiale provenait de l’a. brachiale 3 cm après l’origine de l’a. profonde du bras. Le trajet de ces artères à l’avant-bras était normal. Toutefois, à la main droite, la participation de l’a. radiale et de l’a. ulnaire aux arcades palmaires superficielle et profonde était, de façon inhabituelle, équivalente. Du coté gauche, l’arcade palmaire superficielle-était constituée, comme dans les descriptions classiques, principalement par l’a. ulnaire et l’arcade palmaire profonde par l’a. radiale. L’origine haute des aa. radiales dans ce cas est expliquée par l’embryologie et peut être distinguée des autres variations artérielles classiques du membre supérieur.
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Içten, N., Süllü, Y. & Tuncer, I. Variant high-origin radial artery: a bilateral case. Surg Radiol Anat 18, 63–66 (1996). https://doi.org/10.1007/BF03207767
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DOI: https://doi.org/10.1007/BF03207767