Post lumpectomy scar changes?

I had a lumpectomy for phyllodes and was told by my surgeon that I would have a "dent" afterwards.  Well, the area of the scar seemed to be kind of straight across instead of rounded out like it used to be, but I wouldn't have called it a "dent" exactly.  Like I said, it wasn't as full as before but was just sort of flat there.  Now I'm about 5 months out from surgery (I think?) and it is dented looking now.  So now I'm kind of weirded out, wondering if that's just the result of any last bit of swelling finally having gone away, or if it could mean something.  The original lump that I had came with a slight flattening, so I'm super sensitive if I think the contours look different in any way.  I am very closely followed so will be talking to my docs soon, just wondering if it's possible for postsurgical swelling to take that long to go away and leave a final "dented" result.