It only need one
ovarian cell left behind, if it turned into
cancer cell, then 1devided into 2, 2 into 4, 4 into 8, 8 into16, ect... It is possible to have cancer but very low chance compare to intact ovary. Very sorry about your dx even after hysterectomy, but you are not the only one. I have seen other women had similar situation. Hope it helps. We are here to support each other whenever and however needed.