Birth Defects - Syndromes - Malformations - Anomalies
- U - Z
 - Ulrich Turner
 - Vaginal Atresia
 - Van der Hoeve - De Kleyn
 - Van Der Woude
 - VCF
 - VCF Takao
 - VCFS
 - Velo Cardio Facial
 - Vertical Talus
 - Virchow's Oxycephaly
 - Vitamin A
 - Von Hippel Lindau
 - Von Mayer - Rokitansky - Kuster
 - Von Recklinghausen Disease
 - Vrolik Osteogenesis Imperfecta congenita
 - Walker - Dandy
 - Warkany
 - Watson
 - Watson Alagille
 - Watson (Neurofibromatosis)
 - WBS
 - Weber Klippel Trenaunay
 - Weber Parkes
 - Weber Sturge Dimitri
 - Wermer
 - Werner
 - Wiedemann
 - Wiedemann Beckwith
 - Williams
 - Wilms Tumor 2
 - Wolf - Hirschhorn
 - Wolfs syndrom 4p- syndromet
 - WRN
 - X Fragile site Folic Acid type
 - X ray
 - X - linked Mental Retardation and macro-orchidism
 - X - linked Mental Retardation associated with marXq28
 - X - linked Mental Retardation Hypotonic Facies
 - Xq28
 - XXXY Males
 - XXY Males
 - Zollinger Ellison
 






