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Reconstruction of an abnormal artery observed in an 11 mm embryo: considerations on the embryologic origin of the subclavian artery

Reconstruction d'une arteria lusoria observée chez un embryon de 11 mm. Reflexion à propos de l'origine embryologique de l'artère subclavière

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Summary

The retro-oesophageal right subclavian a. is a classical variant. We report the first case recognised in the embryo (11 mm subject reconstructed by Born's method). Four other adult cases are analysed (1 dissection and 3 clinical cases) and compared with 250 clinical observations of the supraaortic trunks. In the modal state it arises from the 7th arterial segment. The origin of the subclavian and vertebral aa. and the arrangement of the supraaortic trunks allow the distinction of three types, whose embryologic origin is discussed.

Résumé

L'artère sub-clavière droite rétro-oesophagienne est une variation classique. Nous en rapportons le premier cas chez un embryon (sujet de 11 mm reconstruit selon la méthode de Born). Quatre autres cas adultes (1 dissection et 3 dossiers cliniques) sont analysés et comparés à 250 observations cliniques des troncs supraaortiques. A l'état modal, elle proviendrait de la 7ème artère segmentaire. L'origine des artères sub-clavières et vertébrales, l'agencement des troncs supra-aortiques permettent de distinguer trois types dont l'origine embryologique est discutée.

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Lescalié, F., Peret, M., Reigner, B. et al. Reconstruction of an abnormal artery observed in an 11 mm embryo: considerations on the embryologic origin of the subclavian artery. Surg Radiol Anat 14, 71–79 (1992). https://doi.org/10.1007/BF01628047

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  • DOI: https://doi.org/10.1007/BF01628047

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