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Membranous Nephropathy
Diagnose This!

Diagnose This (July 4, 2022)

This is the C4d immunofluorescence from a 5 year post-transplant biopsy of an AA female who had ESRD due to…

Antibody-Mediated Rejection, Twitter Poll, Arkana Laboratories
Twitter Poll

Twitter Poll (February 20, 2019)

ANSWER: B The findings are suspicious for active antibody-mediated rejection (ABMR), based on the presence of moderate glomerulitis (g2), severe…

By Vanessa Moreno, MD
transplant glomerulopathy, Chronic Active Antibody-Mediated Rejection
Teaching Points

Chronic Active Antibody-Mediated Rejection

A diagnosis of chronic active antibody-mediated rejection (ABMR) requires morphologic evidence of chronic tissue injury (e.g. transplant glomerulopathy), evidence of…


Antibody-Mediated Rejection
Teaching Points

Antibody-Mediated Rejection

This biopsy was performed on a 37-year-old female with a history of type 1 diabetes mellitus, status post second deceased…

acute antibody-mediated rejection
Pushing Glass

Pushing Glass (October 10, 2017)

The patient is a 50-year-old African-American female with a past medical history significant for ESRD secondary to lupus nephritis who…

Michael Kuperman, MD renal pathologist at arkana laboratories
By Michael Kuperman, MD
Intimal Arteritis
Teaching Points

Intimal Arteritis

The image in Figure 1 shows mild intimal arteritis in an allograft biopsy from a patient who had undergone a…


Antibody-Mediated Rejection
Diagnose This!

Diagnose This! (April 17, 2017)

What is this stain and what does this finding mean in a transplant patient (Hint: Its not a vascular marker).…

By L. Nich Cossey, MD