Tubular Diseases
Acute interstitial nephritis
A mixed inflammatory cell infiltrate in a child with acute interstitial nephritis. Image courtesy of Patrick Walker, MD.
Read MoreWBC casts
WBC casts (black arrows) in a biopsy specimen of a patient with acute interstitial nephritis. Images courtesy of Patrick Walker, MD.
Read MoreAutosomal recessive polycystic kidney disease (ARPKD)
Gross pathology and low-power light microscopy of kidney tissue in a neonate with ARPKD. The kidneys are enlarged but maintain their reniform shape, and are full of microscopic cysts derived…
Read MoreSimple renal cysts
Microscopic renal cysts. Note the flattened to cuboidal epithelium lining the cysts. Images courtesy of Patrick Walker, MD.
Read MoreAcute interstitial nephritis
Acute interstitial nephritis with associated acute tubular injury. There is interstitial edema and the tubules are not back to back as would be expected, due to the inflammatory and lymphocytic…
Read MoreAcute tubular necrosis
Acute tubular necrosis (ATN). Note the tubules are not back-to-back due to interstitial edema (Masson trichrome staining, not shown, did not show appreciable fibrosis). There is blebbing and sloughing of…
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