Only my mother and I have this palm pattern with a line going right across it. Even my mothers parent's dont have it. Ive been googling for different kinds of patterns but it didn't show anything different.

http://img61.imageshack.us/img61/2594/lefthanddw8.jpg

left hand

http://img383.imageshack.us/img383/9378/righthandcv3.jpg

right

i bet everyone took a good look at their palms after reading this, aha.