Schematic representation of the ESCC grading scale
Schematic representation of the ESCC grading scale
Grade 0 – Tumor confined to bone. Grade 1a – Tumor with epidural extension, without displacement of thecal sac. Grade 1b – Tumor with epidural extension and displacement of thecal sac but no contact with the spinal cord. Grade 1c – Tumor with epidural extension and spinal cord abutment, without displacement. Grade 2 – Tumor that displaces or compresses the spinal cord, without circumferential tumor extension or obliteration of the CSF space. Grade 3 – Tumor with circumferential epidural extension and/or that causes severe spinal cord compression with obliteration of the CSF space.