Focal xanthogranulomatous pyelonephritis -- a diagnostic dilemma.
Focal Xanthogranulomatous Pyelonephritis (XGPN) may be erroneously interpreted as renal cell carcinoma. We report a case of a young Philippino who presented with persisting right flank pain for 2 years. Imaging showed a well-delineated lesion in the lower pole of the right kidney extending to the hilum. Nephrectomy was performed under a tentative diagnosis of renal cell carcinoma, whereas histology revealed focal XGPN. Pre-operative diagnosis of focal XGPN was difficult because of radiological similarities to renal cell carcinoma and lack of the usual clinical presentation.
Hussain
Muhammad Sarwar
MS
Department of Urology, Prince Abdullah bin Abdul Aziz Hospital, Bisha, P.O. Box 60, Kingdom of Saudi Arabia. sarwardr@hotmail.com
Bhagat
Vinay Kumar
VK
D000328:Adult; D002292:Carcinoma, Renal Cell / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis; D009392:Nephrectomy; D011705:Pyelonephritis, Xanthogranulomatous / Q000175:diagnosis* / Q000601:surgery; D014057:Tomography, X-Ray Computed