A usually polypoid, benign neoplasm that arises from the endometrial cavity. It is characterized by the presence of a mesenchymal core component and an epithelial component that forms a lining on the mesenchymal core. The disease is MONDO_0003458 (uterine corpus adenofibroma). Also known as: adenofibroma of body of uterus, adenofibroma of corpus uteri, adenofibroma of the body of uterus, adenofibroma of the corpus uteri, adenofibroma of the uterine body, adenofibroma of the uterine corpus, adenofibroma of uterine body, body of uterus adenofibroma.