label: Brenner Tumor
label_lc: brenner tumor
description: "A tumor composed of solid and cystic nests of neoplastic urothelial-type cells in an abundant stromal component that is dense and fibroblastic in nature. It arises from the ovary and very rarely the paratesticular structures. It includes benign Brenner tumor, borderline Brenner tumor, and malignant Brenner tumor."