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ESCC grading

ESCC grading
Axial T2-weighted MR images representing progressive grades of ESCC. The spinal cord is encircled in white in each image.
(A) Grade 0 – Tumor confined to bone (not considered ESCC).
(B) Grade 1a – Tumor with epidural extension, without displacement of thecal sac.
(C) Grade 1b – Epidural tumor with thecal sac compression but no cord contact.
(D) Grade 1c – Epidural tumor with thecal sac compression and cord contact without compression.
(E) Grade 2 – Tumor that displaces or compresses the spinal cord, without circumferential tumor extension or obliteration of the CSF space.
(F) Grade 3 – Tumor with circumferential epidural extension and/or that causes severe spinal cord compression with obliteration of the CSF space.
ESCC: epidural spinal cord compression; MR: magnetic resonance; CSF: cerebrospinal fluid.
Reproduced with permission from: Bilsky MH, Laufer I, Fourney DR, et al. Reliability analysis of the epidural spinal cord compression scale. J Neurosurg Spine 2010; 13:324. Copyright © 2010 American Association of Neurological Surgeons. https://thejns.org/.
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