左頸部交感神経幹の変異をともなう大動脈弓分枝異常の1例

概要

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An anomalous case of the pattern of the branches from the aortic arch associated with a variation of the left cervical sympathetic trunk is reported. This case was found in a male Japanese cadaver of 76 years old. From the aortic arch, 3 arteries arose in the following order : (1) the common trunk formed by the brachiocephalic artery and the left common carotid artery, (2) the left vertebral artery, and (3) the left subclavian artery. This case belongs to the type D of Adachi-Williams-Nakagawa's classification of the variations of the branching pattern of the aortic arch. The anomalous left vertebral artery arose directly from the aortic arch and entered the transverse foramen of the 6th cervical vertebra. In addition, the ganglia and the branches of the left cervical sympathetic trunk arranged anomalously, i. e. in front of the vertebral artery a large ganglion, probably termed the vertebral ganglion, was found, from which two bundles arose to connect the ganglion located at the level between the first and second thoracic vertebra (this is probably the first thoracic ganglion). The superior bundle crosses the vertebral artery, while the inferior bundle the subclavian artery. The cause of this anomaly of the artery and nerve seems to be related developmentaly each other.
千葉大学の論文