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. 2017 Jan 5;18(1):180–193. doi: 10.3348/kjr.2017.18.1.180

Fig. 10. Imaging appearance of normagreater auricular nerve and its pathology.

Fig. 10

A-E. Axial T2-weighted images depicting greater auricular nerve (long arrows) branching off from cervical plexus (dotted arrow on A and B), running posterolaterally in posterior cervical triangle, and wrapping around edge of sternocleidomastoid muscle (SCM, asterisk) to proceed to parotid gland. Note external jugular vein (EJV, arrowheads) running just anterior to greater auricular nerve on surface of SCM. F. Axial CT image showing typical case of schwannoma (arrow) arising from greater auricular nerve on outer surface of SCM (asterisk) posterior to EJV (arrowhead).