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  • Title: Diagnosis and treatment of women with radiologic findings suspicious for uterine arteriovenous malformations.
    Author: O'Rourke-Suchoff D, Benitez S, Higgins MCCS, Stier EA.
    Journal: J Obstet Gynaecol; 2021 Jul; 41(5):769-773. PubMed ID: 33054446.
    Abstract:
    This study investigated the clinical outcomes for patients with pelvic ultrasound findings suspicious for uterine arteriovenous malformations (AVMs) at a single institution. We reviewed the electronic medical record to identify women with pelvic ultrasound reports read as possible uterine AVM, and used medical records to determine clinical outcomes. Among the 39 women with ultrasounds suspicious for AVM, 14 had subsequent MRIs, 10 had additional ultrasounds, and 10 underwent pelvic angiography. Five of the 39 women were ultimately diagnosed with AVMs. Of the 34 women who did not have an AVM, 12 were diagnosed with retained products of conception. Women may be receiving overtreatment for possible uterine AVMs; careful clinical consideration is warranted as the most common clinical diagnosis for women with radiologic findings suspicious of uterine AVM is retained products of conception.Impact statementWhat is already known on the subject: An acquired uterine arteriovenous malformation (AVM) is an abnormal arterio-venous connection in the myometrium that may cause life-threatening haemorrhage. Over the past decade, it has been noted that the characteristic ultrasound findings of uterine AVM may represent other causes of uterine hypervascularity including retained products of conception.What the results of this study add: As there is no consensus on the management of highly vascular myometrial lesions suspicious for uterine AVMs, this study reports our institution's experience with pelvic ultrasound findings suspicious for uterine AVMs. We found that further diagnostic workup, including MRI and angiography were common, but that the most frequent final diagnosis was retained products of conception.What the implications are of these findings for future clinical practice: This study contributes to the growing body of work noting spectrum of conditions with similar vascular ultrasound findings, and suggests that at least in this sample, women may be receiving overtreatment for these presumed uterine AVMs. Close collaboration among gynaecologists and radiologists is needed to interpret the significance of these radiographic images and to determine the appropriate intervention, as women with radiologic findings suspicious of uterine AVM will frequently have retained products of conception.
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