Tricuspid atresia

• Facts:
  Cyanotic congenital heart disease
• History / PE:
  Cyanotic infant
  
• Diagnosis:
  Hypoplastic/absent right ventricle
  Decreased pulmonary markings
  Left axis deviation
• Associated With:
  Ventricular septal defects (VSDs) in 90% of cases
  Transposition of the great arteries (TGAs) in 30% of cases