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Trying to Get A Hernia Diagnosis
Sounds like a straightforward Trocar site incisional hernia. This can occur if she had an infection at that site, if the fascia was stretched to remove the appendix through it, and/or if the fascia was not closed at the end of the operation. It seems your daughter also has a propensity toward herniation.
I recommend an open repair with mesh insertion. And recreation of her belly button to make it look like a nice innie.
Please submit a picture so others can see what a small Trocar site hernia looks like. And thanks for spreading the word about this discussion board.