Yohannan Doris George, Rajan Rajeev, Chandran Akhil Bhuvanendran, Krishnapillai Renuka
Department of Anatomy, Government Medical College, Trivandrum, India.
Surg Radiol Anat. 2019 Feb;41(2):235-237. doi: 10.1007/s00276-018-2122-1. Epub 2018 Oct 25.
We report an unusual origin and course of the thyroidea ima artery in a male cadaver. The ima artery originated from the right subclavian artery very close to origin of the right vertebral artery. The artery coursed anteriorly between the common carotid artery medially and internal jugular vein laterally. It then coursed obliquely, from below upwards, from lateral to medial superficial to common carotid artery, to reach the inferior pole of the right lobe of thyroid and branched repeatedly to supply the anteroinferior and posteroinferior aspects of both the thyroid lobes and isthmus. The superior thyroid arteries were normal. Both the inferior thyroid arteries were absent. The unusual feature of this thyroidea ima artery is its origin from the subclavian artery close to vertebral artery origin, the location being remarkably far-off from the usual near midline position, and the oblique and relatively superficial course. This report is a caveat to neck surgeons to consider such a superficially running vessel to be a thyroidea ima artery.
我们报告了一例男性尸体中甲状腺下动脉不寻常的起源和走行。该甲状腺下动脉起源于右锁骨下动脉，距右椎动脉起始处非常近。该动脉在内侧的颈总动脉和外侧的颈内静脉之间向前走行。然后它从下向上、从外侧向内侧斜行，在颈总动脉浅面走行，到达右叶甲状腺下极，并反复分支供应双侧甲状腺叶及峡部的前下和后下部分。甲状腺上动脉正常。双侧甲状腺下动脉缺如。该甲状腺下动脉的不寻常特征在于其起源于靠近椎动脉起始处的锁骨下动脉，其位置明显远离通常的近中线位置，以及其斜行且相对表浅的走行。本报告旨在提醒颈部外科医生，要考虑这种走行表浅的血管为甲状腺下动脉。
