Dear all,
Thank you for your valuable contributions. The answers received were as follows:
1. condrosarcoma/ parosteal condrosarcoma, probably lowgrade.
2. Looks mxyoid. But will need a biopsy.
3. just has a desmoid tumor that looked similar along the trapezius at the level of the middle 1/3 of the clavicle. It needs tissue sampling to ensure synovial sarcoma is excluded too.
4. Myxoid tumor is a good possibility, given the age, but I would not rule out a more aggressive form such as low-grade myxofibrosarcoma.
5. Agree that isn’t a hematoma. The extension anteriorly eroding scapula is worrisome for low grade malignancy and j would biopsy.
6. I would suspect chondrosarcoma. The septal enhancement is suspect for chondroid tumor.
Here is a example of verified chondrosarcoma in a costa from my practice.
7. Juxtacortical (parosteal) chondrossarcoma.
8. I think a myxoid sarcoma seems much more likely. Hematoma should show some changes in the adjacent soft tissues.
9. Could still be a surface chondroid lesion (periosteal chondroma)? I appreciate lack of rings and arcs but i think that does not exclude this.
Agree myxoid lesion possible.
I will follow-up on the tissue biopsy and let you know.
On Sun, Sep 28, 2025 at 11:16 PM Mai wrote:
Dear all,
I’d like your help on this case of a 35 year old female who was referred for evaluation of the long thoracic nerve due to scapular winging (which she states had started after seeing a physiotherapist for shoulder pain!). There was no mention of any swelling!What do you think it is? I was considering a myxoid tumor. But what about that spicule of subperiosteal bone arising from the scapula? Is it reactive? The lesion seems to be involving more than one muscle compartment. So it’s less likely to be a hematoma from pressure, as the patient stated. Correct?
Thank you in advance
Mai
