An unsuspected case of uterine arteriovenous malformation with nidus aneurysm following vaginal delivery: Diagnostic challenges and management

An unsuspected case of uterine arteriovenous malformation with nidus aneurysm following vaginal delivery: Diagnostic challenges and management

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Uterine arteriovenous malformations (AVMs) are rare but potentially life-threatening cause of postpartum hemorrhage (PPH).Accurate differentiation from other PPH causes, such as retained products coal tar soap woolworths of conception (RPOC) and gestational trophoblastic disease (GTD), is imperative, as inadvertent improper management such as uterine curettage may cause catastrophic bleeding with high mortality rates.We present the case of 35-year-old woman who presented with excessive vaginal bleeding 2 months postnormal vaginal delivery.Initial ultrasound findings raised suspicion of uterine AVM with a differential diagnosis of type 3 RPOC.Further imaging with computed tomography angiography (CTA) and digital rock cliff reservoir subtraction angiography (DSA) confirmed an underlying uterine AVM with a nidus aneurysm.

The patient subsequently was treated with successful embolization and was discharged in stable condition.