مهاجرت IUD به داخل مثانه وتشکیل سنگ بر روی آن

Background : Ectopic migration of IUD into bladder and urethra with subsequent formation of ston on it is among the rare complications of IUD .Two women, 38 and 45years old with recurrent bladder stone due to their IUDs inserted 5-6 years before were admitted with urinary irritation symptoms .In primary cystoscopy , no trace was found of either IUDs or their penetration into the stones . The stones were broken by electrohydraulic , however with further observation in the subsequent admissions and a thorough investigation , it was realized that the IUD prong had penetrated about 0.5 cm into bladder and formed stones . Since the IUDs could not be removed by cystoscope, in order to prevent the next recurrence and formation of cystovaginal fistula, the IUDs and stones were removed by cystostomy. In a two- year follow –up no complications were reported .