Incidental finding of a rare anomaly: Bilateral maternal pelvic kidneys

Abstract

Pelvic kidney occurs when kidney fails to migrate above the pelvic brim during embryologic development. Bilateral pelvic kidneys are rare. We present a 31-year-old multigravida [G4 P3+0] female, who presented for routine early obstetric scan which revealed non-fused kidneys located posterio-lateral to the fundus of the gravid uterus and anterior to the sacrum. Pelvic kidneys are largely asymptomatic; and this was the case in our patient who had three previous uneventful pregnancies and vaginal deliveries without diagnosis of bilateral pelvic kidneys.