Figure 1. (A) Non-contrast magnetic resonance imaging (MRI) of the lumbar spine reveals a well-defined mass (white arrow) just superior to the L1–2 bulged disc. (B) MRI with contrast shows the tumor (white arrow) has migrated caudally to the inferior border of the L1–2 bulged disc. (C) Intraoperative photograph shows the tumor (black arrow) originated from a nerve root (white arrow). (D) Intraoperative (post-laminectomy) ultrasonography demonstrates the tumor (white arrow) and the bulged disc (arrowhead).