Endometriosis in a kidney with focal xanthogranulomatous @entity2885 and a XXXX .

@entity1 @entity8 @entity46 @entity158 @entity2885 @entity20597
BACKGROUND: The presence of @entity46 in the kidney is extremely rare. We report a case of @entity46 in @entity8 incidentally found in a malfunctioning kidney removed because of xanthogranulomatous @entity2885 . CASE PRESENTATION: A 53-year-old Chinese premenopausal @entity1 presented with intermittent right flank @entity158 for many years. Imaging studies revealed a contracted non-functioning right kidney and a @entity20597 . The contracted kidney was considered to have resulted from chronic @entity2885 . The abscess was drained. The @entity1 subsequently underwent a right nephrectomy. Histology revealed @entity8 in addition to xanthogranulomatous @entity2885 and a @entity20597 . No evidence of @entity46 was identified at the pelvic site. The @entity1 was symptom-free after operation. CONCLUSION: Endometriosis is a common benign condition in @entity1 of reproductive age that is characterized by the presence of endometrial glands and stroma outside the uterine cavity, which affects either genital or extragenital sites. Involvement of the urinary tract is rare. Among the urinary tract @entity46 , only a few cases involve the kidney. @entity8 is difficult to diagnose; a final diagnosis relies on the pathohistologic findings. Treatment involves hormonal manipulation or a hysterectomy with bilateral salpingo-oophorectomy. Whether a nephrectomy required depends on the level of renal function. Although extremely rare, renal @entity46 should be part of the differential diagnostic spectrum when a contracted, @entity8 is present. Early diagnosis might have prevented an unnecessary nephrectomy in cases of uncomplicated renal @entity46 .
