Swans collar?

I have this unexpected deformation in my finger and someone at the doctor's bureau looked at it really quick, it wasn't an appointment or anything, but he said it be probally a swans neck. What exactly is that? And how is it fixed?

gratefulness =]

Answers: what does the deformity look approaching? try posting a picture of it or something like that so we can better comprehend it.

More Questions and Answers ...