<unk>  refers to conditions in which the middle parts of limbs are disproportionately short. When applied to skeletal dysplasias,<unk>  dwarfism describes generalised shortening of the forearms and lower legs. This is in contrast to rhizomelic dwarfism in which the upper portions of limbs are short such as in achondroplasia. Forms of<unk>  dwarfism currently described include: * Langer<unk>  dysplasia * Ellis–van Creveld syndrome * Robinow syndrome * Léri–Weill dyschondrosteosis
Mesomelia
Sirenomelia
Rhizomelia
Phocomelia
Dolichostenomelia
Meromelia
Loxoscelism
Ghosal hematodiaphyseal dysplasia