Suggest Treatment For Leiomyosarcama In Uterus

My mom had Leiomyosarcama in her uterus the size of a grapefruit...removed last September a year ago...complete hyserectomy.....the doctor thinks it has returned...pressure on bladder...because of her age 78..he doesn't want to be aggressive with it. She did remarkably well with her surgery last fall and has almost fully recovered from a broken hip in June. She is not eating well and generally doesn't feel well. We want a second opinion...what should we do?