Teixeira Andrade, MarleneV. Marques de Freitas, CláudiaCâmara, SaraVieira, José Joaquim2020-05-082020-05-082016Case Reports in Obstetrics and Gynecology Volume 2016, Article ID 7401409, 6 pages2029-6692http://hdl.handle.net/10400.26/32254Endometriosis is defined as the presence of endometrial glands and stroma outside the uterus. It affects 3 to 10 percent of women of reproductive age. Umbilical endometriosis is rare, with an estimated incidence of 0.5-1.0% among all cases of endometriosis, and is usually secondary to prior laparoscopic surgery involving the umbilicus. In this report, we described a case of umbilical endometriosis treated with surgical resection and highlight the great importance of medical history compared to complementary diagnostic tests that can be sometimes inconclusive.engendometriosisumbilical endometriosisstroma outside the uterussurgical resectionMadeira IslandPortugalcyclical bleedingUmbilical Nodule with Cyclical Bleeding: A Case Report and Literature Review of Atypical Endometriosisjournal article10.1155/2016/7401409