I too felt this is a great story. My 16 year old son had the surgery 2 weeks ago. His mass was only on one side and started out very small but grew to almost 2.5 inches. He is 5'11" and only weighs 130 lbs. He has never been even close to overweight. He has been a swimmer since he was 10. He swam with the gyne but like your son was immediately back into a t-shirt between events. What concerned me was how fast this thing grew. It went from a small pea sized lump to this huge thing in less than a year. The doctor's wait and it will go away attitude made me crazy, but I thought "heck, he's the doctor, he should know." Well, not only did it not go away, it grew. After 18 months or so, we finally decided to get a second opinion. The general surgeon we went to said it really did need to come out. It would not go away and it would eventually get hard and be much more difficult to remove. We are presently fighting with the insurance company to cover this. The bill was $10,000 or so of which only $2k was for the doctor. He's not getting rich of this, he's a general surgeon not a plastic surgeon. When a surgeon tells me "it must come out" and that it could get even bigger - along with that comment and watching this lump grow on my son, we did the surgery.
Frankly, I don't understand why the insurance companies fight this. If he wanted to see a psychiatrist to deal with the "embarrassment" they would pay for that. Or in the case of your sons underlying depression and mood changes, that they would be okay with. I don't get it. I'm only a bit less sure when its a weight loss issue, but that is not the same type of gyne our sons had. Well anyway, we are going back to see the surgeon for a second post op visit. I sure hope to get this covered. The insurance appeal guy told me we may have some success in dealing with this due to the rapid growth of it and the doctors defining it as a medical necessity. It was painful when touched. Nothing unbearable but like a chest bruise. He also told me to identify the time line from when we first noticed it, March 2008 - it was approximately 2 cm. By the time we saw the surgeon is was 5 cm x 4.7 cm x 3 cm and that was in March of 2009.
Well anyway, I am glad to have found this site and will keep reading to see what other information I can find on this.
Thanks