Coccyx lesion 39F MRI please help

Jerrold Mink shared this reference

https://www.ajronline.org/doi/10.2214/AJR.10.4460

It’s a small series….but no benign notochordal rest enhanced, and all the chordomas did.
I recommended a contrast exam.
I’m hoping it doesn’t enhance.
Then I guess I’d have to decide whether to follow it up in a year or two….
I’ll share the contrast images when she returns.

On Wed, May 31, 2023 at 3:37 PM hilary umans <hilary.umans> wrote:

She has mild scoliosis and some abnormalities on Lsp MRI that might explain LBP.The referrer was looking specifically for sacroiliitis, the SI joints are normal.
I suspect this dark T1 / bright STIR signal lesion in the coccyx is incidental.
I think the main DDx is benign notochordal rest vs chordoma….do you agree?
My understanding is that the notochordal rest won’t enhance but chordoma should….is that reliable?
(sometimes it’s two cases a day, apologies)

Waiting for your thoughts.

Hilary

Loading

Leave a Comment