Tehran University of Medical Sciences Case Reports in Clinical Practice 2538-2683 6 S1 2022 07 06 271 273 Mohammad Reza Sasani Department of Radiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. Mansoureh Chegeni Department of Radiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran. 2021 01 15 2021 04 12 Ectopic pregnancy (EP) is a life-threatening condition in pregnancy. EP after partial or total salpingectomy on the same side is rare; the mechanism of this condition is not clear. However, three hypotheses have been reported. We present a case of interstitial EP in a woman who underwent ipsilateral total salpingo-oophorectomy for endometriosis 3 years ago. The current issue highlights that total salpingectomy does not exclude ipsilateral interstitial EP. Therefore, clinicians should be aware of this diagnosis to prevent catastrophic consequences. https://crcp.tums.ac.ir/index.php/crcp/article/view/458