Hi Tina,
You are not crazy, you are right on the money,
What you saw is Pseudogout, or more precisely calcium pyrophosphate dehydrate deposition (CPPD) within the hyaline cartilage. It appears as crystallisation within the hyaline cartilage as opposed to gout which appears as monosodium rate deposition on the surface of the hyaline cartilage.
I see CPPD in shoulders and knees from time to time and it is a nice diagnosis. I have even seen it teaching through the capsular ligament apparatus and filling the rotator cuff cable (coracohumeral ling) with CPPD deposition.
Nice work Tina.
Steve