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Twitter Poll (October 28, 2020)

By Joel Murphy, MD

Oct 29, 2020

Medullary angiitis, renal pathology, kidney disease, arkana laboratories

Answer: C

Medullary angiitis is a histopathologic lesion within the renal medulla that is characterized by interstitial hemorrhage with associated neutrophilic inflammation and karorrhectic debris. While the finding is somewhat non-specific in etiology, it has been seen in cases of ANCA-associated glomerulonephritis, IgA nephropathy, and patients with prior infection treated with antibiotics (see reference).


Hendricks AR, Harris AA, Walker PD, et al. Renal medullary angiitis: a case series from a single institution. Human Pathology (2013); (44): 521-525.


Quick note: This post is to be used for informational purposes only and does not constitute medical or health advice. Each person should consult their own doctor with respect to matters referenced. Arkana Laboratories assumes no liability for actions taken in reliance upon the information contained herein.