Tetralogy of Fallot

  • Etiology: congenital
  • CXR: boot shaped heart – upward pointing cardiac apex due to right ventricular hypertrophy
  • Imaging: right ventricular outflow obstruction / stenosis, right ventricle hypertrophy, over-riding aorta, ventricular septal defect, right arch in 20%
  • Clinical: most common cyanotic congenital heart disease, only cyanosis with increased pulmonary blood flow

Cases of Tetralogy of Fallot

CXR of tetralogy of Fallot
CXR AP shows decreased pulmonary blood flow, a right-sided aortic arch and an upturned cardiac apex resulting in a boot-shaped heart.