Chordoma & Chondrosarcoma

Specialized care for rare skull-base tumors

Chordoma and chondrosarcoma are uncommon malignant bone tumors that may develop at the skull base, including the clivus. Because they can grow beside the brainstem, cranial nerves, carotid arteries and other vital structures, evaluation and treatment are best planned by a multidisciplinary team experienced in skull-base disease.

What is the difference?

Chordoma usually develops from remnants of the notochord and may arise at the clivus, mobile spine or sacrum. Chondrosarcoma is a cartilage-forming cancer that can also occur at the skull base. These tumors can look similar on scans, but they are biologically different. Expert pathology review is essential because treatment and follow-up may differ.

Symptoms that merit evaluation

Symptoms depend on the tumor’s location and may include double vision, facial numbness, difficulty swallowing or speaking, hearing changes, headache, neck or back pain, or weakness and numbness in the limbs. These symptoms are not specific to these tumors, but persistent or worsening symptoms should be assessed.

Why specialist evaluation matters

Treatment planning may require coordinated input from skull-base neurosurgery, head and neck surgery, neuroradiology, neuropathology, radiation oncology, endocrinology and rehabilitation. The goal is to confirm the diagnosis, understand the tumor’s relationship to critical structures and develop an individualized plan.

How care may be planned

• Review of MRI and CT images

• Expert pathology confirmation; for suspected chordoma, this may include brachyury testing when appropriate

• Multidisciplinary case discussion

• Surgery aimed at maximal safe removal when appropriate

• Radiation-oncology evaluation, including particle therapy when clinically appropriate and available

• Long-term imaging surveillance

Filipino chordoma resources

To make reliable chordoma guidance more accessible to Filipino patients and families, We reviewed the Tagalog translation of the Chordoma Foundation’s expert-recommendation materials for newly diagnosed and recurrent chordoma. The Foundation acknowledges this contribution on its Asia resource page.

These external educational resources are specifically about chordoma. They do not cover chondrosarcoma and do not replace an individual medical consultation.

Preparing for a consultation

Please bring or upload your MRI and CT images, radiology reports, pathology report and available slides or blocks, previous operative notes, radiation-treatment records and a current medication list. A complete set of records helps avoid unnecessary repetition and supports multidisciplinary review.

This page provides general educational information and does not replace an individual medical consultation. New or worsening weakness, difficulty speaking or swallowing, severe headache, loss of consciousness or other sudden neurological symptoms require urgent medical assessment.