An unusual case of asymmetrical combined variations of the subclavian and axillary artery with clinical significance

Abstract

In a Greek Caucasian male cadaver, a combination of the following arterial variations were observed: an aberrant right subclavian artery originating as a last branch of the aortic arch and coursed posterior to the oesophagus, a right non-recurrent laryngeal nerve, an atypical origin of the left suprascapular artery from the axillary artery, an unusual emersion of the lateral thoracic artery from the subscapular artery and a separate origin of the left thoracodorsal artery from the axillary artery. According to the available literature the corresponding incidences of the referred variants are: 0.7% for the aberrant right subclavian artery, 1.6-3.8% for the origin of the suprascapular artery from the axillary artery, 3% for the origin of the left thoracodorsal artery from the axillary artery and 30% for the origin of the lateral thoracic artery from the subscapular artery. Such unusual coexistence of arterial variations may developmentally be explained and has important clinical significance.

An unusual combination of a bilateral aberrant suprascapular artery with neurovascular structures variants

“…The subscapular artery has been identified to originate in common with the LTA (28.7%), with the posterior circumflex humeral artery (15.2%), and with the LTA and posterior circumflex humeral artery (4.7%) [ 8 ]. In the present study, the accessory LTAs emerged both from the AA, the subscapular trunk, or the artery, similarly to Panagouli et al [ 18 ] described case, in which the LTA emerged from the subscapular artery. The abnormal origin, course, and termination of the AA branching pattern may cause confusion in angiographic studies and complicate surgery [ 4 ].…”

A Bilateral Aberrant Suprascapular Artery Associated with Neurovascular Structures Multiplication

“…The subscapular artery has been identi ed to originate in common with the LTA (28.7%), with the posterior circum ex humeral artery (15.2%), and with the LTA and posterior circum ex humeral artery (4.7%) [8]. In the present study, the accessory LTAs emerged both from the AA and the subscapular artery, similarly to Panagouli et al [15] case, in which the LTA emerged from the subscapular artery. The abnormal origin, course and termination of the AA branching pattern may cause confusion in angiographic studies and complicate a surgery [3].…”