Borderline Ovarian Serous Tumor-Micropapillary Variant/Non-Invasive Low Grade Ovarian Serous Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A non-invasive serous neoplasm that arises from the ovary and shows micropapillary and/or cribriform architectural patterns. It is composed of round epithelial cells with scant cytoplasm and moderate nuclear atypia.