I had a tummy tuck with lipo of the flanks in 2022. Noticed a hard lump went back to same surgeon in 2023 for lipo 360 plus revision of that lump. Hard lump is still there & did not go away with massages. What could this be? Surgeon wont revise, says it's loose skin, but the lump is hard. The lump is visible through my clothing and does not match my right flank. When wearing underwear, jeans, leggings, joggers, etc the lump protrudes even further.