A levonorgestrel-releasing intrauterine system embedded in the omentum in a woman with abdominal pain: a case report

IntroductionThe Mirena intrauterine system has been licensed as a contraceptive in the United Kingdom since May 1995. The use of an intrauterine system as a primary method of contraception among women has been slowly increasing over the last few years and they now account for about 3% of contraceptive use in England.

The Mirena intrauterine system now also has a license for the management of idiopathic menorrhagia. Women may be informed that the rate of uterine perforation associated with intrauterine contraceptive use is low (0-2.3 per 1000 insertions).

The rate of perforation reported with the Mirena intrauterine system in a large observational cohort study was 0.9 per 1000 insertions.Case presentationIn this case report, the diagnosis of an intraperitoneal Mirena intrauterine system was noted nearly four years after its insertion, despite the patient having had a vaginal hysterectomy and admissions to hospital in the interim with complaints of abdominal pain.

Conclusion: This case report demonstrates clearly that whenever there is a question of a intrauterine system having fallen out following an ultrasound scan report showing an empty uterus, clinicians should also perform an abdominal X-ray.

Author: Asimakis PappasSiddesh ShambhuKevin PhillipsKate Guthrie
Credits/Source: Journal of Medical Case Reports 2009, 3:9301

Published on: 2009-11-27

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