Deefa is going fine. It was actually a complete shock when I saw the needle on the radiograph, and initially I went back and checked to see if there was anything in his fur!
I suspect at some point he's eaten the needle and it may have become walled off now. Because he hasn't had any clinical signs we're going to leave it in there for the moment. If you look closely you can see it almost looks like it's rusting in the middle - and it's been quite a while since I've embroidered and ages since I've lost a needle, so for the moment we're just going to keep an eye on him. Poor little boy.