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Plasma Cell Rich Interstitial Nephritis
Art of Medicine

Art of Medicine: Plasma Cell Rich Interstitial Nephritis

The above painting shows plasma cell rich interstitial inflammation with lymphocytic and plasma cell tubulitis, findings that can be seen…

IgG4-related disease
Diagnose This!

Diagnose This (September 10, 2018)

What is your diagnosis? This biopsy shows a chronic, active tubulointerstitial nephritis with sharp demarcation between affected and non-affected tissue…

By L. Nich Cossey, MD
IgG4-Related Tubulointerstitial Nephritis
Teaching Points

IgG4-Related Tubulointerstitial Nephritis

IgG4-related disease is a systemic inflammatory and sclerosing disorder which may affect a wide range of different organs including the…

IgG4-Related Disease
By L. Nich Cossey, MD
IgG4-Positive Plasma Cells
Teaching Points


Renal parenchyma with florid interstitial fibrosis with thick bands of sclerosis expanding the interstitium and pushing the tubules apart on…