Tags: Disease.
Hypochondroplasia is a developmental disorder caused by an autosomal dominant genetic defect in the fibroblast growth factor receptor 3 gene (FGFR3) that results in a disproportionately short stature micromelia and a head that appears large when compared with the underdeveloped portions of the body. It is also known as achondroplasia tarda and atypical achondroplasia.It is classified as short-limbed dwarfism.