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March 18, 2021

Twitter Poll (March 17, 2021)

Minimal Change Disease, arkana laboratories, kidney pathology, renal pathology

Answer: Minimal Change

Medullary angiitis is characterized by interstitial hemorrhage within the medulla combined with neutrophilic inflammation with associated karyorrhexis. This finding has been associated with all of the above diagnoses except for minimal change disease. Most often, it has been seen in association with systemic ANCA-associated vasculitis. For more information please see the following reference:

References

Hendricks AR, et al.  Renal medullary angiitis: A case series from a single institution. Hum Pathol.  2013 Apr;44(4):521-5.