Behind a Paralyzing Pandemic: Renal Cortical Necrosis

Abstract

Renal cortical necrosis (RCN) is a rare cause of acute kidney injury (AKI) in developed countries. Drugs, especially non-steroidal antiinflammatory drugs, (NSAIDs) are very rarely described in the literature to cause cortical necrosis. It is characterized by confluent necrosis of the entire cortex apart from a thin rim of viable tissue in the subcapsular, juxtaglomerular areas, and medulla. Although the pathogenesis of the disease remains unclear, the final common pathway is permanent occlusion of afferent arterioles and interlobular arteries in the cortical vasculature. NSAIDs are widely prescribed in general clinical practice. Despite being readily available, a subset of individuals is susceptible to serious renal toxicity and caution should be exercised when these drugs are used. We present the case of a young adult who presented with renal cortical necrosis with irreversible renal failure. Unfortunately, it occurred as a result of inappropriate use of over-the-counter NSAIDs in the setting of the pandemic outbreak of COVID-19.