Wow !
What a great example.
It looks exactly as the images in the case o the week presentation.
I think there is only two possible explanations for this appearance.
CPPD (which I think is most likely)
or dystrophic calcification associated with an underlying chronic tendinosis.
The pattern you have seen is identical to the cases I shared so whatever one is, they are all going to be the same.
I never managed to get follow up on my cases.
I wonder how we can prove once and for all if this is CPPD or dystrophic calcification ?
Steve