Trisomy 21

  • Etiology: congenital
  • Complications:
    — Moya Moya syndrome
    — O-C1, C1-C2 instability
    — Peripheral lung cysts
    — AV canal, ASD, VSD
    — Duodenal atresia
    — Annular pancreas
    — Hirschprung disease
    — Trident hands

Cases of Trisomy 21