Unusual cause of low abdominal pain

A 53-year-old woman, G2P2, was referred to the outpatient clinic because of chronic abdominal pain. Abdominal examination revealed tenderness in the right lower quadrant without peritoneal signs and blood analysis was normal. To exclude slow transit constipation a pellet study was performed: plain abdominal radio-graphy showed the presence of all ingested pellets and an abnormal, slightly lateralized and angulated position of the intrauterine device, a levonorgestrel intrauterine system called Mirena® which was placed five years earlier (figure 1). Subsequently an abdominal computed tomography was executed.