{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,18]],"date-time":"2026-06-18T06:04:14Z","timestamp":1781762654724,"version":"3.54.5"},"reference-count":16,"publisher":"Scientific Scholar","content-domain":{"domain":["clinicalimagingscience.org"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec id=\"st1\">\n<jats:title>Background:<\/jats:title>\n<jats:p>Xanthogranulomatous pyelonephritis (XGN) is an uncommon condition characterized by chronic suppurative renal inflammation that leads to progressive parenchymal destruction.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st2\">\n<jats:title>Purpose:<\/jats:title>\n<jats:p>To review the computed tomography (CT) findings of patients diagnosed with XGN.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st3\">\n<jats:title>Materials and Methods:<\/jats:title>\n<jats:p>A retrospective review of CT findings in patients with histologically proven XGN was carried out.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st4\">\n<jats:title>Results:<\/jats:title>\n<jats:p>Thirteen CT examinations of 11 patients were analyzed. Renal enlargement was demonstrable on the affected side in all patients. Nine patients (82%) had multiple dilated calyces and abnormal parenchyma. Six patients (55%) had a renal pelvis or upper ureteric calculus causing obstruction. Three patients (27%) had focal fat deposits identifiable within the inflamed renal parenchyma. Two patients had renal abscesses. Ten patients (91%) had extrarenal extension of the inflammatory changes. Three patients (27%) demonstrated extensive retroperitoneal inflammation.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st5\">\n<jats:title>Conclusion:<\/jats:title>\n<jats:p>Unilateral renal enlargement and inflammation were the most consistent findings of XGN on CT. Perinephric inflammation and collections or abscess should also alert the radiologist to the possibility of this diagnosis.<\/jats:p>\n<\/jats:sec>","DOI":"10.4103\/2156-7514.84323","type":"journal-article","created":{"date-parts":[[2011,8,27]],"date-time":"2011-08-27T10:37:48Z","timestamp":1314441468000},"page":"45","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Computed Tomography Findings in Xanthogranulomatous Pyelonephritis"],"prefix":"10.25259","volume":"1","author":[{"given":"Arumugam","family":"Rajesh","sequence":"first","affiliation":[{"name":"Department of Clinical Radiology, University Hospitals of Leicester NHS Trust, Leicester General Hospital, Gwendolen Road, Leicester LE5 4PW, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"George","family":"Jakanani","sequence":"additional","affiliation":[{"name":"Department of Clinical Radiology, University Hospitals of Leicester 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