The Thoracic Outlet Clinic at Baylor Medicine in Houston ... The symptoms are due to scar tissue formation in neck muscles (called scalene muscles). In neurogenic TOS, the symptoms are pain, numbness, ...

which is known clinically as the superior thoracic outlet resulting from excess pressure placed on a neurovascular bundle passing between the Anterior Scalene and Middle Scalene muscles. It can affect ...

Thoracic outlet syndrome occurs when there is nerve ... bundle that passes between the anterior scalene and middle scalene muscles. There is some degree of variability regarding the number of ...