<unk>  is an extremely rare, multisystem disorder.  It is a syndrome of widened medullary cavities of the metacarpals and phalanges, aortic valve calcification and abnormal dentition.
Singleton-Merten syndrome
Yunis-Varon syndrome
Smith Martin Dodd syndrome
Landau-Kleffner syndrome
Greig cephalopolysyndactyly syndrome
Cruveilhier-Baumgarten syndrome
Treacher Collins syndrome
Loken Senior syndrome