Citations 1
Novel Variant in CLDN16: A Further Step in the Diagnosis of Familial Hypomagnesemia with Hypercalciuria and Nephrocalcinosis—A Case Report
Shimon, Tim, Hager, Megan M., Vairo, Filippo Pinto e , Keddis, Mira T. , Humphreys, Mitchell R. , Vairo, Filippo , Narang, Gopal , Moore, Jonathan, Stern, Karen
Uro | June 30, 2021 | Volume: 1 | Issue: 3 | Pages: 76-81
Familial hypomagnesemia with hypercalciuria and nephrocalcinosis (FHHNC) is a rare tubulopathy characterized by renal loss of calcium and magnesium leading to progressive renal failure. The disorder is caused by variants to the tight junction proteins claudin-16 and -19. While rare, this disorder causes a significant burden to patients based on its clinical manifestations of various electrolyte abnormalities, nephrocalcinosis, and early progression to renal failure. In this report we describe the diagnosis of a novel variant of CLDN16 which clinically presented with severe hypomagnesemia, hypocalcemia, nephrocalcinosis, and renal failure.