Is there a name for such freakishness? (my hand, medical)

Hi, i thought i would ask in here if anyone has ever seen anything like this before, and if you have a name for it, or even better, a cause.

my hand:

http://img526.imageshack.us/img526/9634/p1000493y.jpg

as you can see i have one hand smaller than the other, its not the hand exactly. the photo is a bit missleading. my palms are the same size, my small fingers are the same, as are my thumbs.

i think what it is, is on my 3 central fingers, i am missing my intermediate phlanges, or they are smaller.

i have never been to a Dr. to ask why its like it, but i have asked a few when i have gone in for check up’s. no one can seem to tell me what it is called or its name.

its fully functional, i have never had any pain from it. and yes it is totally ok to make fun of and laugh at. TAKE MY STRONG HAND!

so, any ideas? quite a long shot but i thought it would pass the time, and you never know.

EDIT: oh yea, it has been like this since birth.