Department of Anatomy, Medical School, Faculty of Health Sciences, National and Kapodistrian University of Athens.
1st Department of Internal Pathology, Medical School, Faculty of Health Sciences, National and Kapodistrian University of Athens.
Acta Med Acad. 2022 Dec;51(3):212-216. doi: 10.5644/ama2006-124.391. Epub 2022 Sep 15.
The presence of cervical ribs, 1st rib anomalies, cervical muscle hypertrophy and repetitive motion are possible aetiologies of subclavian artery (SCA) entrapment and/or compression. Thoracic outlet syndrome of the arterial type may appear with symptoms of hand pain due to the aneurismal part of the compressed SCA. The current cadaveric case describes a hypertrophic right-sided anterior scalene muscle (ASM) and the possible entrapment of the right SCA (RSCA) passing through its fibres. Furthermore, the branching pattern of the entrapped vessel is analysed.
A hypertrophic ASM was identified in the right infraclavicular area of a male Greek donated cadaver (70 years of age). The RSCA passed through the ASM belly, and some deeply situated fibres extended posteriorly to the RSCA. The ASM compressed the RSCA against the superior part of the 1st rib.
Knowledge of such variants may be important in the diagnosis of upper limb muscle atrophy or neurosensory loss.
颈肋、第 1 肋骨异常、颈肌肥大和重复性运动可能是锁骨下动脉（SCA）受压和/或受压迫的病因。由于受压 SCA 的动脉瘤部分，动脉型胸廓出口综合征可能出现手部疼痛症状。目前的尸体案例描述了右侧前斜角肌（ASM）肥大，并可能通过其纤维对右侧 SCA（RSCA）进行了压迫。此外，还分析了受压迫血管的分支模式。
在一名希腊捐赠尸体（70 岁）的右锁骨下区域发现了肥大的 ASM。RSCA 穿过 ASM 的腹部，一些位于深部的纤维向后延伸至 RSCA。ASM 将 RSCA 压在第 1 肋骨的上部。
了解此类变异可能对诊断上肢肌肉萎缩或神经感觉丧失很重要。
