plural of hypoplasia

underdevelopment or incomplete development of a tissue or organ, especially when caused by an inadequate or below-normal number of cells

plural of pontocerebellar hypoplasia

a group of rare heterogeneous conditions characterized by prenatal development of an abnormally small cerebellum and brain stem

A rare genetic disorder whose symptoms include very thin light hair and short-limbed dwarfism due to skeletal dysplasia.