I work with a girl who had the exact same tumor discussed. Hers was off to one side. I only know this because - having worked with her for nine years - she decided to post some childhood pictures a few weeks back. I'm sure it gave all of us an "aaaaaaaahhhhhhhhh!" sort of moment, because she's always looked different. And by different, I mean her eyes are different shapes, her face is asymmetrical, her nose has a grafted kinda look.
Not gonna lie, though. I'd do her.
There was a girl in my town whose face had been mauled by a dog. We thought her dress was too plain and conservative, we didn't like her glasses and her hair was frumpy but we all agreed she'd be hella hot if she tried. And, I mean, she couldn't smile straight.
I can attest to the fact that Girl #2 did not have a particularly difficult middle or high school experience. Nobody ever said a thing. We all hung out on equal terms. However, her attire and demeanor were shy and she was difficult to talk to.
I can't say boo about Girl #1's adolescence, but she's in her late '20s now and she's warm, outgoing, ebullient and really goddamn good at her job. She has a marvelous fashion sense and sophisticated tastes. In looking at her childhood pictures, it's clear that she went through hell getting rid of the tumor but that her parents didn't leave her at the hospital for five weeks. That kid - and her tumor - were loved and well-treated and while she probably would have had an interesting time trying to model mascara, she ain't "ugly." She's different.
Ugly, as you say, comes from the inside.