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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 and…
Teaching Points
Interstitial Eosinophils
Prominent interstitial eosinophils (see arrow) are most often associated with allergic-type acute interstitial nephritis (AIN). However, interstitial eosinophils are not…
Teaching Points
Eosinophil-Rich Inflammation in Diabetic Glomerulopathy
These photomicrographs are from a patient with diabetic nephropathy as evidenced by the Kimmelstiel-Wilson nodules in the glomerulus present on…
Teaching Points
IgG4
Renal parenchyma with florid interstitial fibrosis with thick bands of sclerosis expanding the interstitium and pushing the tubules apart on…