Wow - sorry to hear this has happened. That's pretty major in my opinion that it could've happened if it wasn't meant to.

Personally I would make a song and dance about it because you never know what problems it could cause you down the track (was anything else removed /damaged) and how will the medical profession learn from their mistakes if no one tells them.

I've recently had some major dental work done due to a dentist perforating my tooth in a root canal 5 years ago....so I've ended up paying lots of money for a screw up 5 years ago....so I intend to let him know. I don't want anything out of it other than for him to know he's not very good at root canals and also their 'associations' / governing bodies should know because they are the ones that provide these guys with certification to work. If they don't know the mistakes they make, how can they assess whether they should work.

Anyway, that's my 2 cents.

Hope you find some resolve soon.