Vaginal ring pessary
Abdominal pain. Past history of hysterectomy 7 years ago for uterine fibroids. Incidental finding on CT abdomen and pelvis.
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Vaginal ring pessary.
Tiny left lower calyceal renal gravel.
A vaginal pessary is a device inserted into the vagina which can either be mechanical or pharmaceutical.
A mechanical pessary is most commonly used to treat uterine prolapse. It is also used to treat stress urinary incontinence, a retroverted uterus, cystocoele and rectocoele. A bewildering array of shapes and sizes are available.
A pharmaceutical pessary is imbued with compounds active locally.
An understanding of the radiological appearance of some of these devices is useful to avoid misinterpreting them.