Fig. 20
From: An overview of neuromuscular ultrasound of important small nerves
Sonoanatomy of the dorsal scapular and long thoracic nerves at the neck. Short-axis view of the dorsal scapular and long thoracic nerves at the neck. The two nerves appear as tiny hypoechoic or sometimes fascicular structures running in the substance of the middle scalene. The dorsal scapular nerve lies superficial to the long thoracic nerve