Xanthogranulomatous Pyelonephritis Presenting with a Left Flank Mass

• Uwais B. Zaid,
• Sima P. Porten,
• Nadya M. Cinman,
• Thomas H. Sanford,
• Benjamin N. Breyer

Affiliations

Uwais B. Zaid

Department of Urology, University of California San Francisco, 400 Parnassus Avenue, San Francisco, CA 94143, USA

Sima P. Porten

Department of Urology, University of California San Francisco, 400 Parnassus Avenue, San Francisco, CA 94143, USA

Nadya M. Cinman

Department of Urology, University of California San Francisco, 400 Parnassus Avenue, San Francisco, CA 94143, USA

Thomas H. Sanford

Department of Urology, University of California San Francisco, 400 Parnassus Avenue, San Francisco, CA 94143, USA

Benjamin N. Breyer

Department of Urology, University of California San Francisco, 400 Parnassus Avenue, San Francisco, CA 94143, USA