Can I avoid a tummy tuck?

If you are sure you have no loose skin as well as stretch marks in the area, then liposuction alone may be suitable for you. However, for a more accurate assessment please see a board certified plastic surgeon. They’ll need to check your skin quality to make sure.

It's difficult to advise without any photos or an examination. If your concern is simply a resistant fatty pocket and not loose skin or abdominal wall laxity then you should have a nice result from liposuction alone. The best advice will come from a consultation with a board certified plastic surgeon near you.