<unk>  is a rare, lethal ciliopathic genetic disorder, characterized by renal cystic dysplasia, central nervous system malformations (occipital encephalocele), polydactyly (postaxial), hepatic developmental defects, and pulmonary hypoplasia due to oligohydramnios.<unk>  is named for Johann<unk>  and Georg<unk> .
Meckel–Gruber syndrome
Seckel syndrome
Laurence–Moon syndrome
Silver–Russell syndrome
Klüver–Bucy syndrome
Klippel–Feil syndrome
Koolen–De Vries syndrome
Landau–Kleffner syndrome