McCain Skin Cancer Back?

Was it just me or did anyone else notice the growth over John McCain's right eye? Watching his speech in West Desmoines Iowa yesterday I could not tell if his eyebrow was ruffled or if it was something else. Just above the eyebrow but sort of in the eyebrow. Get that checked by a doctor Senator McCain! In the video it looked very dark and very suspicious to me?

The best picture I could find was from AP on Yahoo News?