Adson's Test

Thoracic outlet syndrome is defined as a neurovascular syndrome associated with compression of the brachial plexus and/or subclavian vessels in at least one of the following three compartments: the interscalene triangle, the costoclavicular space, and the space beneath the tendon of the pectoralis minor muscle (Watson et al., 2009; Dessureault-Dober et al., 2018).