pectus

A breeder told me that one of her kittens has a pectus on his back.
What is that and would it be a problem for his health or greatly alter his appearance?

I hadn't heard of it, so I looked it up:

http://www.catvet.homestead.com/FCK.html
http://www.pawpeds.com/pawacademy/he...whatisfck.html
http://www.pectus.org/whatis.htm (this one is about the defect in humans)
http://www.vetsurgerycentral.com/pectus.htm (shows a dog surgery for the defect)



It sounds like it is similar to, but distinct from, flat-chested kitten syndrome. How effected the cat will be depends on how severe the case is.