Immunoglobulin G4-related renal disease masquerading as renal pelvic tumor

We present a 64-year-old male with lower urinary tract symptoms, who, on evaluation had a right renal pelvic tumor on imaging and ureteroscopy. The patient underwent laparoscopic radical nephroureterectomy on clinical suspicion of upper tract urothelial carcinoma. The final histopathology revealed IgG4-related disease.
Source: Indian Journal of Urology - Category: Urology & Nephrology Authors: Source Type: research