My 19 year old daughter has one deformed breast that is not growing. What can be done to help her?

Photos would be helpful in determining the degree of asymmetry.  I have performed this type of procedure on patients that young where fat grafting and / or implants and/or lift made for a very nice result

I would recommend an exam by a plastic surgeon to determine the options.Find a
board certified plastic surgeon who performs hundreds of breast
augmentations and breast lifts each year. Then look at the plastic surgeon's website
before and
after photo galleries to get a sense of who can deliver the results.
Kenneth Hughes, MD Los Angeles, CA