1. The Case ∣ A 69-year-old man with a 10-year history of idiopathic retroperitoneal fibrosis 
Mohamad Zaidan, Julien Adam, Pascale Cervera-Pierot, Dominique Joly 
Kidney International 
Volume 80, Issue 12, Pages (December 2011)
DOI: /ki
Copyright © 2011 International Society of Nephrology Terms and Conditions

2. Figure 1
Positron emission tomography with 18fluorodeoxyglucose showing a significant uptake in the retroperitoneum and prostate.
Kidney International  , DOI: ( /ki )
Copyright © 2011 International Society of Nephrology Terms and Conditions

3. Figure 2
Immunohistochemical staining for IgG4 subclass (original magnification, × 400). Lymphocytes and plasma cells infiltrate the prostate tissue with more than 10 positive IgG4 plasma cells per high-power field.
Kidney International  , DOI: ( /ki )
Copyright © 2011 International Society of Nephrology Terms and Conditions