I went to the dermatologist yesterday for my follow-up appointment. Turns out that horrible thing was a fibroma, nothing to worry about. Very good news.
I got my stitches out. It's pretty gross, the place where my fibroma used to be. Not as gross, mind you, as the fibroma was, but not the smooth, pristine bit of leg I had been dreaming of either. It's kind of purple and lumpy and not very nice in general. I know it is dumb, since this is not an area anyone will probably ever even notice, but I am feeling kinda down about it. Hidden as it may be, this is still a (small) blow to my self-esteem. Or, rather, to my extreme vanity.