Fig. 2. (A) Short axial ultrasound image showing the C5 transverse process. Note the anterior tubercle (AT) and the posterior tubercle (PT) as the ‘2-humped camel’ sign. Solid arrows indicate nerve root. (B) Short axial view of ultrasound imaging (with color Doppler) revealing a blood vessel located at the site of the targeted nerve root in the intervertebral foramen.
