• Over 50's
• Sphenoid or Sacrococcygeal region
Benign and malignant (chordoma) variants
Benign frequently incidental findings
Usually well demarcated on MR
Typical low T1 High T2 unlike haemangioma
Occult on x ray and CT
Benign lesions (BNCT) can become agressive
Imaging follow up thus recommended
Chordoma typically in the over 50's
85% are in either the sphenoid or sacrococcygeal regions, usually in males
15% vertebral
Osteolytic, some sclerosis and soft tissue mass
Calcification very common in sacral lesions
High water content on MR