1966-1967 / 2953
Plexopathy
Incidence <60 Gy
non-zero but low
The brachial plexus begins at the ventral rami of nerve roots at the
fifth cervical vertebrae and continues inferiorly to include the
nerve roots exiting the neural foramen of the first thoracic vertebrae
(Fig. 3). It then passes inferolaterally between the anterior
and middle scalene muscles to innervate the cutaneous skin of the
upper extremity and numerous muscles including the latissimus
dorsi, pectoralis major and minor, levator scapulae, deltoid, and
biceps brachii.
Chen et al., IJROBP, 2012