Affiliation:
1. Department of Nephrology, Xiangya Hospital Central South University Changsha China
2. Department of Pathology, Xiangya Hospital Central South University Changsha China
Abstract
ABSTRACTBackgroundPaired box gene 2 (PAX2) heterozygous mutations can cause renal coloboma syndrome, but its role in patients with focal segmental glomerular sclerosis (FSGS) has been rarely reported.MethodsBased on the clinical manifestations and renal pathological characteristics of the patient, as well as familial whole exome sequencing, the diagnosis of FSGS related to PAX2 mutation was confirmed. Treatment such as lowering urinary protein and blood pressure was given, and the patient was followed up and observed.ResultsThere is a familial heterozygous case presented with chronic kidney disease secondary to FSGS, which was related to PAX2 frameshift mutation due to the deletion of G at the position 76 (c.76delG). To our knowledge, this is the first report of PAX2 c.76delG variant related to adult‐onset FSGS.ConclusionHere, we further expand the phenotypic spectrum of FSGS. Genetic screening especially PAX2 mutation is recommended in patients with adult‐onset FSGS of unknown etiology.
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