<unk>  (CHH) is a rare genetic disorder. Symptoms may include short-limbed dwarfism due to skeletal dysplasia, variable level of immunodeficiency, and predisposition to cancer. It was first reported by Victor McKusick in 1965.
Cartilage–hair hypoplasia
Achondroplasia
Enamel hypoplasia
Blue nails
Green nails
Knuckle pads
Spotted lunulae
Macrotia