Palpable suture ring around areola following reduction making areola look puffy. Will removing the suture fix this? (photo)

What you are describing is exactly the problem with permanent sutures for areola reduction or Benelli lift. While they may prevent re-expansion of the areolas, they also prevent natural expansion and contraction with temperature and stimulation, leading to puffing out. A solution to prevent expansion but allowing for natural expansion/contraction is a Strattice donut. I have also used Galaflex for this.

Is not stated specifically how your operation was performed. If permanent suture was used it can become encapsulated and leave the identical appearance that is shown in the provided photographs. Your plastic surgeon should be able to remove this.