Adenomatoid tumor of the uterus simulating interstitial pregnancy

A case of an adenomatoid tumor of the uterus is presented. The 22-year-old patient was admitted with classic signs and symptoms of an interstitial pregnancy. However, emergency surgery confirmed the diagnosis of an adenomatoid tumor of the uterus concomitant with an intrauterine pregnancy. Although rare, adenomatoid tumors of the uterus may present as a uterine abnormality, possibly causing problems in the differential diagnosis of it and an interstitial pregnancy.