Intra uterine device migrating into the bladder with stone formation.

An intrauterine device (IUD) perforating the uterus and bladder and creating a nidus for stone formation is rarely described in the international literature. A 50-year-old woman was referred to our department for 6 months history of suprapubic pain and pollakiuria without fever. Ultrasound, X-ray examination and abdominopelvic scanner confirmed an IUD perforating the uterus and the bladder. The stone on the perforating ectopic IUD was successfully removed with YAG Holmium Laser and the IUD was extracted without complications with the aid of a transurethral resectoscope.