Is dependent edema same as pitting edema?any significance difference?

Edema: Dependent edema is edema that's distributing according to forces of gravity. If you are standing dependent edema will be in your legs, however if you are in the bed it can be in the sacrum and back. On the other hand pitting edema is the one where if you press on it with your finger you will leave a mark. However this is all semantics and both dependent and pitting edema are signs of volume overlo.