[Xanthogranulomatous pyelonephritis associated with pregnancy, in ex-transplant donor with single kidney].

We present the first case, up to our knowledge, of XGP in pregnant woman, in solitary kidney (related living kidney donor). Therapeutic abortion was not resolutive and nephron sparing surgery (espeleostomy) was successfully performed. Fourteen years later the renal function is still normal and 2/3 of renal parenchima are preserved. Literature review is pointed out.