I took a fairly quicklook, too, and found a couple more reports of interest. There aren’t many and more seem to be tenosynovitis.

Summary of reported cases a few years back.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4578118/
Here’s another from Duke after hurricane relief efforts.
https://dukespace.lib.duke.edu/server/api/core/bitstreams/34f1dbcb-d5b2-4e9d-bfcd-4315b8db767d/content
It’s not surprising that your docs aren’t familiar with it. I wonder if most labs would ID it.

Good luck! I had a weird (not as rare as yours) pseudomonas putida grow out and I decided not to treat since it was just one specimen and I felt ok. Good luck!