Achondrogenesis, Type Ib, also known as achondrogenesis type ib, is related to achondrogenesis, type ii and diastrophic dysplasia. An important gene associated with Achondrogenesis, Type Ib is SLC26A2 (Solute Carrier Family 26 Member 2), and among its related pathways/superpathways are Metapathway biotransformation Phase I and II and Extracellular matrix organization. Affiliated tissues include bone and skin, and related phenotypes are macrocephaly and frontal bossing