Arteriovenous malformations of the uterus associated with medical abortion

Seven cases of uterine arteriovenous malformations associated with pregnanc y were initially suspected by the history of prolonged bleeding after a med ical abortion and then confirmed by color Doppler scanning. All cases were managed expectantly and resolved spontaneously. When AVMs required diagnosi s by pathology or angiography, only the most severe cases would have been r eported. Now that they can be recognized on ultrasound, it is possible that mild cases such as these will be found to be much more common. (C) 2000 In ternational Federation of Gynecology and Obstetrics. All rights reserved.