English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Pro

Presents the zaia usage as premium feature

ZAIA

Presents AI Discovery search usage as a premium feature

AI Discovery

Presents AI Discovery explain and summary usage as a premium feature

Content Analysis

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Presents the pdf analysis as premium feature

PDF Analysis

1500 Top-up

3000 Top-up

Zendy Basic

2500 Top-up

Zendy Unlimited

Presents the access of premium content as premium feature

Premium Content

Background/Aims: Because preoperative diagnosis of xanthogranulomatous pyelonephritis (XGP) is difficult, due to its similarities to other renal diseases, the diagnosis is made postoperatively in most cases. The purpose of this study was to describe the clinical findings in 11 patients with histologically documented XGP. Methods: We retrospectively reviewed the characteristics, laboratory and radiological findings, preoperative diagnoses and operative methods of 11 patients with XGP, who underwent a surgical procedure or percutaneous renal biopsy. Results: Among eleven patients, nine had flank pain and six had anemia. Preoperatively, three patients were diagnosed as XGP, two with renal cell carcinoma, two with renal tuberculosis, one with renal abscess, one with perirenal abscess, one with renal staghorn calculi with non-functioning kidney, and one with pyelonephrosis. On the basis of the computed tomography (CT) features, the diffuse or global forms (70.0%) were more common than the localized or focal forms (30.0%). One patient diagnosed with renal cell carcinoma preoperatively was diagnosed as XGP through an intraoperative frozen section renal tissue biopsy and underwent partial nephrectomy. One patient diagnosed as focal XGP underwent percutaneous biopsy of the renal mass, which confirmed the diagnosis. This patient received treatment with only antibiotic therapy. Conclusions: CT can be considered the preferred diagnostic tool for the evaluation of XGP; however, percutaneous renal biopsy seems to be valuable in selected cases for differential diagnosis of renal malignancy. (Korean J Med 2012;82:313-320)

Clinical Features of 11 Patients with Xanthogranulomatous Pyelonephritis