Yes, Sandel...I think you're correct in thinking that the marks are from edema. I only have RSD in my left leg, a little more than halfway between my ankle and knee (think mid-shin), so the marks are always on my left leg. I don't get them on my right (perfectly normal) leg...just the creases for 10-15 minutes after taking off socks. I assume it's because the elastic band on the top of a sock holds the edema down in that spot, making everything below it swell more.

-Betsy