Any idea what this might be?
I have one of those! Apparently they're very common and absolutely harmless. They can be removed but I haven't bothered because it doesn't hurt and isn't visible. My hairstylist showed me how the hair growing out of it is really kinky and curly (I have pretty straight hair).
Here is some more info: http://www.patient.co.uk/health/epidermoid-and-pilar-cysts-sebaceous-cysts
Good luck at the doctors! In the meantime, don't worry ~it's not a big deal at all!
Mama since 2010
Multicultural living in Europe