Diastrophic Dysplasia: Many pictures and much information about DD dwarfs, their development, treatment, and even pregnancy.
Diastrophic Dysplasia: Many images of X-rays of DD joints, from the Alfred duPont Hospital for Children.
eMedicine - Diastrophic Dysplasia: Contains a very detailed discussion of the symptoms of DD.
Online Mendelian Inheritance in Man: Clinical features, diagnosis including prenatal diagnosis, and population and molecular genetics of DTD.