Greater auricular nerve thickening 2022-09-04T15:00:56Z Palpable great auricular nerve Increase in thickness of the great auricular nerve, a cutaneous nerve of the head. It originates from the cervical plexus, with branches of spinal nerves C2 and C3. Thickening may lead to the nerve being palpable or even visible in this region. Abnormal great auricular nerve morphology