Which test is associated with compression by the pectoralis minor muscle?

• A. Allan Test
• B. Wright Test
• C. Adson's Test
• D. Costoclavicular Test

Answer: (B)

Compression under the coracoid where the pectoralis minor tendon crosses the neurovascular bundle is most likely provoked when the arm is moved into full or hyper abduction. The Wright test uses this exact position: the arm is placed in maximum abduction with slight extension, and the radial pulse is checked while the patient holds the position. If the pulse weakens or symptoms appear, it points to compression in the pectoralis minor space rather than the scalene area or the space between the clavicle and first rib. This helps differentiate pectoralis minor–related thoracic outlet compression from other sites tested by different maneuvers. In short, the Wright (hyperabduction) test is the one that targets compression by the pectoralis minor.