Had this lump on the back of my hand for a few weeks now and wondered if someone might know what it is.
Is it something that will go on it's own or does it need treatment? TIA
https://ibb.co/K0hpM1M
Barsel, no I don't think it is related to your arthritis and yes I do think it is a ganglion. Yes, it could be other things like a lipoma, but all are non life threatening.
Leave well alone and when your time comes for surgery, then mention it to your hand surgeon.