I am having a lipoma removed from the back of my thigh, 2 inches above the knee. It's 5cm horizontal and 2cm vertical in shape. Which is the best direction for surgical incision to reduce scarring? I've been told horizontally as it follows Langer lines, but was also told vertically is better as when you elongate leg the skin will pull on scar and stretch it, so a horizontal incision would get wider from this. Which is right?