Extra claw? on cat's toe

Hey all,
Today I noticed that my 12yr old female DSH tabby, Ashley was holding up one front paw when sitting.
I took a look at her foot and found about a 3mm long "claw" on the end of one of her toes, under the normal claw.
Nothing else looked wrong with her foot, so I assume this is why she's favouring it.
After a few minutes of Google-ing, at this site,
http://www.messybeast.com/poly-cats.html
it looks similar to the lower claw in the left photo a bit more than 3/4 down the page.

As today is Saturday of a long weekend, it'll be a few days until our vet can look.
Just curious if anyone else has seen anything similar??

Thanks in advance
DPL
Victoria BC

It's fairly common and I've known three cats like that. You need to just slowly trim that claw so that it stops getting in the way of her walking. I would have the vet check it out to make sure no infection plus they can probably trim a little closer than you'd be able to. The cat I had like that I had that toe removed while he was under for neutering at the vet's recommendation. As your cat is 12, I would imagine that diligent trimming will be the key. :)