Baral P, Vijayabhaskar P, Roy S, Kumar S, Ghimire S, Shrestha U
Department of Anatomy, Manipal College of Medical Sciences, Pokhara, Nepal.
Kathmandu Univ Med J (KUMJ). 2009 Jul-Sep;7(27):293-7. doi: 10.3126/kumj.v7i3.2740.
An isolated neurovascular variation is common but multiple vascular anomalies on same upper limb is a very rare case. We observed an unusual variations in right upper limb during routine dissection of a Nepali cadaver. The variations were observed in Axilla, Forearm and Palm. In axilla, fi rst part of axillary artery did not give any branch, the second part of axillary artery gave off only two branches - (a) thoracoacromial artery and (b) a large common trunk which later gave off lateral thoracic, thoracodorsal, subscapular, posterior circumflex scapular and then continued as posterior circumflex humeral artery. The third part of axillary artery gave off only anterior circumflex humeral artery. In forearm, the ulnar artery runs downward superficial to flexor muscles. Here, radial artery gave off common interosseous artery. In palm radial artery did not give any contribution to superficial palmar arch which is solely formed by the continuation of ulnar artery. This type of anomalies are very rare and is not reported in Nepalese cadaver at all. These anomalies are described in detail and their clinical relevance is highlighted.
孤立的神经血管变异很常见,但同一上肢出现多个血管异常则是非常罕见的情况。在对一具尼泊尔尸体进行常规解剖时,我们观察到右上肢存在不寻常的变异。这些变异见于腋窝、前臂和手掌。在腋窝,腋动脉第一段未发出任何分支,腋动脉第二段仅发出两个分支——(a)胸肩峰动脉和(b)一个大的总干,该总干随后发出胸外侧动脉、胸背动脉、肩胛下动脉、旋肩胛后动脉,然后继续作为旋肱后动脉。腋动脉第三段仅发出旋肱前动脉。在前臂,尺动脉在屈肌浅面下行。在此处,桡动脉发出骨间总动脉。在手掌,桡动脉对掌浅弓没有任何贡献,掌浅弓完全由尺动脉的延续形成。这种类型的异常非常罕见,在尼泊尔尸体中根本没有报道过。本文对这些异常进行了详细描述,并强调了它们的临床意义。