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Thrombotic microangiopathy
Diagnose This!

Diagnose This (August 22, 2022)

This is a 3 month post-transplant kidney biopsy from a patient with ESRD due to polycystic kidney disease. She recently…

anti-brush border antibody disease, ABBA, renal pathology, Twitter Poll, arkana labs
Twitter Poll

Twitter Poll (December 23, 2020)

Answer: D The histologic features of a thrombotic microangiopathy (TMA) are non-specific as to etiology and include both acute and…

mesangiolysis, renal pathology, kidney biopsy stain, arkana laboratories
Diagnose This!

Diagnose This (August 5, 2019)

What is this finding in this native kidney? …

By L. Nich Cossey, MD


Circumferential Mesangial Interposition

Mesangial cell interposition between GBMs is an unusual and not fully understood process. In this episode, Dr. Silva discusses where…

Fred Silva, MD renal pathologist at arkana laboratories
By Dr. Fred Silva
Thrombotic Microangiopathy
Diagnose This!

Diagnose This! (January 29, 2018)

What is your diagnosis? Immunofluorescence is negative.   …

By L. Nich Cossey, MD