Can a lump and dent above the belly button be fixed with a Lipo revision ?

This may likely subside on its own. I would consider liposuction revision with fibrous release, fat grafting, and even surgical release if it doesn't subside. Best, Dr. Karamanoukian#Realself100 Surgeon

I suggest external heating devices like RF (velashape or venus legacy) and lymphatic massage.  Wait a few more months to see what is left behind.  Potentially later if this still persists, liposuction can be performed on the upper abdomen with release of the connective tissue bands below the belly and additionally fat transfer if needed.  Best, Dr. Emer.

The line caused by the garment should resolve with time and massage.  Make sure to follow the instructions of your surgeon

Congratulations on putting the toughest part of your recovery behind you.  You are early post op and surgical revisions shouldn't be considered for months so follow your surgeon's recommendations.

Best to allow at least a few more months of recovery. Than consider revision for dents with fat grafts and riggotomies, lipo on lumps under local...

I see what you are talking about in your photos, It may be related to swelling and the garment.  While discussing it with your surgeon is a good idea, it likely will improve with time.