Skull base Flashcards
1
Q
Skull base DDx (2)
A
Chordoma,
Chondrosarcoma
2
Q
Chordoma (4)
A
Locally agressive tumour originating from the notochord (midline structure relating to spinal development).
Therefore all chordomas are midline, either Clivus, vertebral bodies (especially C2) or sacrum.
Always T2 bright
3
Q
Chrodosarcoma (4)
A
Main differential of chordoma in the clivus.
Nearly always lateral to the midline.
Also T2 bright, with “arcs and rings” matric on chondrosarcoma.
Needs CT to describe that
