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02 November 2021: Articles

Glucocorticoids Induce Partial Remission of Focal Segmental Glomerulosclerosis but Not Interstitial Nephritis in COVID-19 Acute Kidney Injury in an APOL1 Low-Risk Genotype White Patient

Challenging differential diagnosis, Rare coexistence of disease or pathology

Piotr J. Nowak A* , Joanna Forycka B , Natalia Cegielska B , Karolina Harendarz B , Małgorzata Wągrowska-Danilewicz B , Marian Danilewicz B , Tomasz Płoszaj B , Maciej Borowiec C , Rafał Wlazeł B , Michał Nowicki D

DOI: 10.12659/AJCR.933462

Am J Case Rep 2021; 22:e933462

Figure 2. First kidney biopsy: (A) segmental sclerosis and hyalinosis of the glomerular capillary tufts (PAS staining, ×200); (B) a small focus of collapsed capillary loops and overlying slight epithelial hypertrophy and hyperplasia in the Bowman space of one glomerulus (Jones’ methenamine-silver staining, ×200); (C) interstitial edema, severe degenerative changes of tubular epithelium and tubular microcysts, mild to moderate interstitial inflammation, composed of mononuclear leukocytes, some proximal tubular epithelial cells contained intracytoplasmic protein droplets positive for periodic-acid-Schiff (PAS staining, ×200). (D) The re-biopsy showed segmental sclerosis and hyalinosis of the glomerular capillary tuft, glomerular epithelial cells contained PAS – positive droplets (PAS staining, ×200).

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American Journal of Case Reports eISSN: 1941-5923
American Journal of Case Reports eISSN: 1941-5923