A<unk>  (or tumor) is a biphasic tumor. They consist of epithelial tissue, and stromal or mesenchymal tissue. They may be benign or malignant. Examples include: * Brenner tumor of the ovary * Fibroadenoma of the breast * Phyllodes tumor of the breast
Fibroepithelial neoplasm
Lymphoepithelial lesion
Benign lymphoepithelial lesion
Intraepithelial neoplasia
Vascular tumor
Perforating calcific elastosis
Malignant transformation
Infibulation