HNF1β Gene Mutation Leading to a MODY5 With Renal Dysplasia: A Case Report.

This case report describes a 20-year-old female MODY5 patient. Genetic testing revealed a heterozygous missense mutation c.452C>G (p.R151G) in HNF1β, identical to the mutation carried by her diabetic mother. This case underscores the importance of genetic testing in young-onset diabetes with renal anomalies, facilitating personalized care and family risk assessment.