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Embolization of the inferior mesenteric artery for post‐partum hemorrhage with a vaginal laceration: A case with unusual collateral supply

A 36‐year‐old primipara woman was referred to the interventional department for management of severe primary post‐partum hemorrhage with a vaginal laceration after a normal vaginal delivery. Angiography revealed that the superior rectal branch of the inferior mesenteric artery was one of the origins of persistent vaginal bleeding following embolization of both uterine arteries. The patient was successfully treated by selective embolization without other complications. Our case report highlights that the inferior mesenteric artery should be considered as an unusual extrauterine source for post‐partum hemorrhage.