Atrial septal defect

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Atrial septal defect

  • The pulmonary artery is large relative to the aortic knuckle
  • This combination is associated with increased pulmonary blood flow (left to right shunt)
  • An atrial septal defect was confirmed on echocardiogram
  • This adult patient had mild shortness of breath and a subtle systolic murmur

Patent ductus arteriosus

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Patent ductus arteriosus

  • The pulmonary artery is large relative to the aortic knuckle
  • The features are very similar to those seen in the image above
  • Echocardiogram showed that this patient had a patent ductus arteriosus (PDA)
  • PDA is usually discovered in early childhood but can be asymptomatic until adulthood

Congenital heart disease - post-surgery

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Congenital heart disease - post-surgery

  • This patient had undergone corrective surgery for tetralogy of Fallot (TOF) many years previously
  • The X-ray can be considered ‘normal’ for this patient even though the pulmonary arteries are enlarged and there is also a right-sided aorta – a common associated anatomical variant in patients with TOF
  • The appearances of a chest X-ray can be confusing following surgery for correction of congenital anomalies – reference to the surgical history is required

Page author: Salisbury NHS Foundation Trust UK (Read bio)

Last reviewed: October 2019