Sonographic Evaluation of an Abnormal Location of an Intrauterine Device

Abstract

Ultrasound has been used to locate intrauterine devices for many years and continues to be considered one of the best ways to visualize the presence and location of an intrauterine device. Using a transvaginal approach ultrasound can be used to identify intauterine device expulsion and translocation, organ perforation, and incorectly placed devices. Although no longer a popular method of birth control in the United States, the intrauterine device remains the most common reversible form of contraception used worldwide. The intrauterine device is the most cost effective method of birth control if used more than 2 years. One rare complication of intrauterine device use is translocation of the device. An intrauterine device that has moved from the fundus of the uterus can become imbedded in the myometrium and can even perforate the uterus and move into the abdomen or pelvis. Intrauterine devices have been reported to perforate the intestine and the bladder. This case illustrates the ultrasound appearance of a perforation caused by an intrauterine device.