Young-onset Chronic Kidney Disease with Biopsy-proven Chronic Tubulointerstitial Nephritis and a Rare REN Variant, with Coincident Drug-related Erythrocytosis: A Case Report
Chronic Kidney Disease (CKD) in a young adult with a bland urinary sediment should prompt consideration of a monogenic tubulointerstitial disorder. Autosomal Dominant Tubulointerstitial Kidney Disease (ADTKD) is an under-recognised genetic cause, and in ADTKD due to REN the phenotype depends on where the variant lies i...