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Interstitial Eosinophils
Prominent interstitial eosinophils (see arrow) are most often associated with allergic-type acute interstitial nephritis (AIN). However, interstitial eosinophils are not…
Proliferative Glomerulonephritis with Monoclonal IgG Deposits
This biopsy was performed on an 81-year-male, status post renal transplant, who presented with increased creatinine (2.3 mg/dl) and microscopic…
Pushing Glass (March 13, 2018)
A 65-year-old male presents with mild proteinuria and a sudden increase in creatinine. He was recently diagnosed with widely metastatic…
Twitter Poll (March 8, 2018)
ANSWER: A True! Pregnancy related complications increase the risk of kidney disease.
Tubular Cast Tutorial
There is a histopathologic spectrum to the casts that can be seen in light chain cast nephropathy. A portion of…
Twitter Poll (February 28, 2018)
ANSWER: C Intimal arteritis (v1 and v2) is more commonly associated with mixed ABMR/TCMR than with pure ABMR. It may…
Diagnose This! (February 26, 2018)
What is your diagnosis of this renal transplant patient? …
Twitter Poll (February 21, 2018)
ANSWER: D ANCA-associated GN and anti-GBM GN are the most common causes of pulmonary-renal syndrome accounting for about 90% of…
Acute Pyelonephritis in Transplants
Acute pyelonephritis in transplant settings (allograft pyelonephritis) is a known cause of allograft dysfunction and a complication that occurs in…
Granulomatous Interstitial Nephritis Differential
This biopsy is from a 25-year-old African American female with renal failure. The photomicrographs here show renal involvement by non-caseating…
Papillary Necrosis
This kidney biopsy is from an elderly adult patient with acute renal failure and a history of non-steroidal anti-inflammatory medication…
Twitter Poll (February 1, 2018)
ANSWER: C Approximately 25-30% of the patients with anti-GBM crescentic glomerulonephritis are ANCA positive, usually for MPO-ANCA.
Diagnose This! (January 29, 2018)
What is your diagnosis? Immunofluorescence is negative. …
Pushing Glass (January 26, 2018)
An otherwise asymptomatic 65-year-old man presents for medical evaluation after 15 years of not seeing a physician. He was noted…
