• Ronit Haimov-Kochman, Victoria Doviner, Hagay Amsalem, Diane Prus, Amiram Adoni, and Yuval Lavy.
• Department of Obstetrics and Gynecology and Department of Pathology, Hadassah University Hospital, Jerusalem, Israel. rkochman@hotmail.com
• Hum. Reprod. 2003 May 1; 18 (5): 990-3.

BackgroundIntrauterine contraception is a widely used, highly effective means of birth control. Uterine perforation is a serious, albeit rare, complication of intrauterine device (IUD) use. Although uterine perforation by levonorgestrel-releasing (20 micro g/day) intrauterine system (LNG-IUS) has already been reported, the peritoneal adhesion potential of this IUD is unknown.MethodsThe medical files of all patients diagnosed with an intra-peritoneal IUD between the years 1990-2002 at Hadassah Medical Center were reviewed. Histopathological study of peritoneal adhesion tissue adjacent to levonorgestrel medicated IUD was conducted in one case.ResultsEight cases of dislocated IUDs were found. Four cases used LNG-IUS and four other cases used copper-IUD. Laparoscopy for IUD removal disclosed mild local peritoneal adhesions between omentum and pelvic organs in all cases. No difference was noted in the appearance of the peritoneum in the presence of either a copper-IUD or LNG-IUS. Histological examination of peritoneal tissue encasing the levonorgestrel-intrauterine system revealed loose connective tissue with aggregates of submesothelial cells with a pseudo-decidual change. Immunohistochemical staining for progesterone receptor was negative.ConclusionsThe peritoneal adhesions potential of LNG-IUS is low, similar to that of the copper-bearing IUD.

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