Rare malignant bone tumor arising from notochord remnants, particularly in the sacrum or skull base.
Pathology
Mechanism and manifestations
Growth may be slow but locally aggressive. Sacral disease can cause pain, radiating symptoms or sphincter problems; manifestations vary with site and size.
Diagnosis and management
Imaging and biopsy planned by a specialist team establish diagnosis. Treatment may include surgery and specialized radiotherapy. An unplanned intervention can complicate care; nonsurgical decompression, laser and shockwave do not treat chordoma.
Points to consider
Benign and malignant describe biological behavior, but a benign lesion can still compress neural tissue or weaken bone. Precise diagnosis depends on context, imaging and sometimes tissue analysis. Progressive pain with weakness or sphincter changes requires prompt assessment.
Role of TAGMED care
This condition first requires medical diagnosis and, depending on the situation, specialist management. TAGMED services do not replace treatment of infection or tumor, stabilization of an unstable injury, or neurological or vascular treatment. Any conservative support should be considered only after diagnosis, restrictions and the treating team’s recommendations have been clarified.
Related concepts and distinctions
These concepts belong to the same field, but are not synonyms.
- Spinal tumor — Tumor involving vertebrae, spinal spaces, meninges or the spinal cord, which may be benign or malignant.
- Spinal osteoid osteoma — Small benign bone tumor that may affect posterior vertebral elements and cause pain disproportionate to its size.
- Spinal osteoblastoma — Usually benign bone-forming tumor that can affect the spine and behave locally aggressively.
Conceptual guide: Chordoma. Blocks summarize useful relationships; they are not an individual anatomical image.
Medical references
- National Cancer Institute. Chordoma.
- National Cancer Institute. Rare Brain and Spine Tumors.
References document the topic; their inclusion does not imply endorsement of TAGMED services by those organizations.
Educational information from The Spine Page. This entry does not replace an individual assessment. Documentary version: October 13, 2026. Sylvain Desforges, B.Sc., D.O., N.D., osteopath and naturopath.
TAGMED clinic contact details
For non-urgent consultations and information about available services.
Clinique TAGMED — Terrebonne
1150, rue Lévis, Suite 200
Terrebonne (Québec) J6W 5S6
450‑704‑4447
Clinique TAGMED — Montréal
1140, avenue Beaumont
Mont-Royal (Québec) H3P 3E5
1‑877‑672‑9060
