Oh kittyl huge hug from here. You know and I know that screening is to catch things so that they can be dealt with and if early enough, successfully. You have been there as have most of us, but that doesn't stop the bottom dropping out of your world when it is your DD.
There are other totally unthreatening possibilities, a cyst, a "mouse" are 2 that occur to me but hold on to the fact that 1) it is good this has been spotted early and 2) she will be seen very soon.
If you and she are doing "worst case scenario" especially in the wee small hours, look at Victoria Darbyshire's pic and blog which were in the paper just last week.
Thinking of you 

Fibre broadband and house phones
^Spongers, cheats and liars - everything I have learnt about men in a lifetime of dating^
Shingles and pneumococcal vaccines side effects
One in five new teachers leaving.
Churchill to be axed from British banknotes in the name of diversity.

