The brachial plexus represents a complex network of nerves formed from the ventral rami of the lower cervical nerves (C5-C8) and the greater portion of the ventral ramus of the first thoracic nerve (T1). The ventral rami or roots coalesce to form trunks, divisions, cords, and branches, which provide motor and sensory innervation to the upper limbs and thorax.  Brachial plexus MRI imaging allows for visualization of a wide range of pathologies such as birth trauma, high-speed trauma, neoplasms (intrinsic or extrinsic masses) or post-radiation injury.