Identification of a novel mutation in FGFR1 gene in mother and daughter with Kallmann syndrome.

ABSTRACT

OBJECTIVES: Congenital hypogonadotropic hypogonadism combined with anosmia or hyposmia is considered Kallmann syndrome (KS). It is often accompanied by bone defects. CASE PRESENTATION Here, we report a girl and her mother with KS caused by a novel mutation in the fibroblast growth factor receptor 1 gene (FGFR1). Interestingly, the daughter presented syndactyly and oligodactyly of the feet. CONCLUSIONS: The presence of bone malformations in a KS patient should direct the geneticist towards a search for specific mutations in FGFR1. Our finding contributes to enrich the spectrum of FGFR1 mutations in patients with KS.