It's this big.

But I don't really know. It could be 7.5 cm wide and like 1 cm flat, meaning it's really this big.

Which doesn't seem so scary.

I was going to post an image of a dermoid cyst. But it's pretty freakin' nasty. I'll save you the gross-out. But if I did post the image, you'd know; it's not a pancake at all.