Yes. In fact, most epithelial ovarian tumors aren’t cancerous. Some tumors are borderline tumors or atypical proliferating tumors. They used to be known as low malignant potential tumors.
In borderline tumors, abnormal cells grow into the epithelial tissue but not your ovary’s supporting tissue (stroma). These cells usually stay in your ovary and rarely become cancer. When cancer occurs, 3 out of 4 cases are stage 1 (confined to your ovary and more treatable). These tumors tend to affect younger people.