Mondo Description Achondrogenesis describes a rare group of lethal skeletal dysplasias characterized by an endochondral ossification deficiency that leads to dwarfism with extreme micromelia, a small thorax, a prominent abdomen, anasarca and polyhydramnios. There are three types of achondrogenesis that exist and that differ clinically, radiologically, histologically and genetically: achondrogensis type 1a, type 1b and type 2.
Disease Ontology Description An osteochondrodysplasia that has_material_basis_in deficient endochondral ossification which results_in dwarfism, short-trunk, short-limbed, anascara, disaprportionately large cranium, and a narrow chest which leads to death in utero or during early neonatal period.