Spontaneous Cervical Intradural Disc Herniation Associated with Ossification of Posterior Longitudinal Ligament

Figure 4

Intraoperative photograph before removal of the herniated disc fragment. Surgical approach was from the right side. There is a dural tear with a distinct preserved arachnoid layer. The disc fragment is near the tip of the metal suction. SCM = sternocleidomastoid muscle. Esoph = trachea and esophagus deep to the retractor.