What can I do about an area poking out above the belly button that revision lipo didn't remove? (photo)

I had a patient with the exact same issue who underwent SmartLipo to have it fixed and several other procedures which all made it worse. Im not saying that's related to your case but its in the same range of defects. in her case I had to do a minor surgery to actually remove the scar tissue that was underlying. and that fixed the problem. I don't know if that's an option for you without seeing you and discussing with you, but such a defect is not uncommon. 

If liposuction has not worked in this area, and if you are happy to except a small incision around the top of your belly button this is might be possible to improve this area via an umbilioplasty approach. You would need a face to face consultation to see if this is possible. Best wishes.

there are two options here, to do more agressive lipo with VASER + internal heating like renuvion j plasma or body tite OR you need to do a tummy tuck with the lipo.  youd have to be seen In person to determine what Is best but it appears you do have loose skin which Is why its pushing out like that.
You need a formal evaluation by an expert in body shaping and contouring to determine what is best.  Traditional liposuction awake and smart liposuction are old methods and do very poorly for tightening skin or significant skin tightening or contouring.  Small problem areas can be improved slightly by these methods.  The best in body contouring not only removes fat with energy devices like VASER ultrasound but also internally heat the skin with radio-frequency devices such as J PLASMA/RENUVION, InMode BodyTite, ThermiRF to heat the under surface of the skin and tighten it at the same time as fat removal. These combinations are called 4D HIDEF VASER contouring and can only be done by a well . trained body contouring specialist. At the same time fat should be harvested, PRP and stem cells added and injected into muscles or indentations/cellulite to get body shaping and contouring.  This is known as a Brazilian butt lift when you inject the fat to the buttock for contouring and lifting, but fat can also be used in areas such as the chest/breast, arms/shoulders, calves and face.  Cellulite should also be treated with cellfina, sculptra, subcision and/or fillers such as bellafill, renuva synthetic fat, or sculptra.  If skin is very loose before surgery then it will need to be removed such as lower abdominal skin (tummy tuck/abdominoplasty), breast skin (breast lift), arm skin (brachioplasty).  Overall you need a full assessment, but simple liposuction alone will not tighten skin and needs a combination of various methods -- fat removal, skin tightening, defining, fat grafting, skin removal -- to get the best in body contouring and body sculpting.  Dr. Emer.