Uterine arteriovenous malformation
Previous story of cesarean section. Routine exam with no symptoms related.
Loading Stack -
0 images remaining
The gray-scale sonographic appearances shows a heterogeneous myometrial echotexture due to the presence of multiple serpiginous/tubular anechoic images within the myometrium, at the uterine's fundus, a retroverted uterus.
The color Doppler demonstrated turbulent flow and showed that the serpiginous/tubular anechoic structures had a low resistance (RI ~0.2-0.5) and a high velocity flow pattern.
3 case question available
Uterine arteriovenous malformation (AVM) is a rare vascular condition. It is a dilatation of the intervillous space deep inside the myometrium, allowing a direct flow from the arterial system towards the venous system, without participation of capillary vessels. Such condition represents about 1–2% of all genital and intraperitoneal hemorrhages1.
In this case, on a routine exam, the patient had no symptoms related and a previous story of a cesarean section. Unfortunately, we had no past exams to confirm a probably acquired or congenital uterine AVM.
In most cases, such malformation is acquired, with a great variety of causes, including gestational trophoblastic disease (GTD), pelvic trauma, surgical procedures (cesarean section, curettage), cervical or endometrial carcinoma, infection and exposure to diethylstilbestrol. The association of the clinical history with imaging findings is useful in the differentiation between congenital and acquired presentations1.
Differential diagnoses with similar sonographic findings include GTD and other hypervascular lesions such as retained conception products and abnormal placentation1.
- 1. Farias MS, Santi CC, Lima AAAA, Teixeira SM, De Biase TCG.Radiological findings of uterine arteriovenous malformation: a case report of an unusual and life-threatening cause of abnormal vaginal bleeding. Radiol Bras. 2014 Mar/Abr;47(2):122–124.
1 article features images from this case
12 public playlist include this case
- Genital and Urinary Ultrasound by Gunnar Andrésson
- Cases for review pre exam by Dr Lawrence Oh
- Gynae by Allister Howie
- O & G by Dr Davina Bates
- Gynae by Dr Sidra Humayun
- OBG+GYN VIVA by Saima Batool ◉
- O&G by Gajan Surendra
- Gynae Viva Ultrasound 3 by Dr Babawale S. Niyi
- O&G - Clinical Conditions - Uterus, Cervix and Vagina by Dr Charlie Handley
- O&G by Grace Aw
- GD: O&G - Gynaecology by Dr Gurjeet Dulku
- Interesting Obs cases for Dave by Dr Scott Robson