N.P.
Hi D.!
If I remember correctly, Cholestiotoma is a "build up" inside on the eardrum. Yes, it can cause a hearing loss, but if I remember correctly, once it is removed, a portion (if not all) of the hearing can be restored. Don't take my word for sure, but I'm pretty sure that this is correct.
It's always scary when we have to face a surgery, let alone one for our children. I worked very closely with ENT (Ear, Nose and Throat) Dr's for 7 years, and learned that most of these childhood procedures are pretty "easy" for the Dr's and very routine.
My first question is...are you comfortable with her Dr? Do you trust him as a professional? If you answered NO to either of these questions, then you need to find a Dr you can answer YES to these questions first. It's all in the "peace of mind" for the parent.
Your Dr should be able to show you two hearing tests, one "presently" with the build up, then what the hearing loss will be without the build up inside (there is a way for a professional Audiologist to do this). Is there an Audiologist in your Dr's office, or do you have to have a seperate office visit for it?
I still have my contacts with a few of my professional friends in the ENT department where I used to work before becoming self-employeed. If you feel like you need any other information, simply reply back to me, and I will find out more info for you. 15 years ago, I would've been able to answer all your questions, but I'm a bit out of touch with it now :o) but would be willing to help you if you need it.
But for now, relax, as in most office's, this is pretty "routine".
I'll be here for you if you want :o)
N.