A novel GLI2 mutation responsible for congenital hypopituitarism and polymalformation syndrome.

OBJECTIVE: We report a novel GLI2 frameshift mutation and describe the phenotypic spectrum of mutations within this gene. PATIENTS AND METHODS: A male with congenital hypopituitarism and polymalformation syndrome was clinically, biochemically and neuroradiologically characterized. Genetic analysis for congenital hypopituitarism was performed using a targeted NGS custom gene panel. RESULTS: A heterozygous frameshift mutation, NM_005270.4:c.2125del, p.(Leu709Trpfs*15), was identified in GLI2 exon 12. This mutation has not been previously reported and confirms the diagnosis of Culler-Jones syndrome (MIM #615849). CONCLUSION: GLI2 mutations should be suspected in the presence of congenital hypopitutarism, characteristic facial abnormalities and polydactyly.