Hereditary syndrome, transmitted as an autosomal-recessive trait, associated with imperfect formation of the long bones of the body, phocomelia or lesser degrees of hypomelia, midfacial defects, prenatal growth deficiency, microbrachycephaly, and cryptorchidism. Survival outlook past early infancy is poor, and of those who do survive, 50% suffer from mental retardation. Also known as: Appelt-Gerken-Lenz syndrome.