incision

Hi, can anybody please tell me what exactly a gridiron incision is, as in the incision used when extracting the appendix? Thanks.

I'm going to the dermatologist to get a few small (3-4mm diameter) moles off my face that bother me. Two are flat and one is slightly raised. He said he was going to use an incision to remove them. How large are the scars going to be and how long will they take to fade until they aren't a big...