Aortopulmonary window

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Aortopulmonary window
Classification and external resources
Specialty medical genetics
ICD-10 Q21.4
ICD-9-CM 745.0
MedlinePlus 007319

The aortopulmonary window is a small space between the aortic arch and the pulmonary artery that is visible in the lateral chest radiograph. It contains the ligamentum arteriosum, the recurrent laryngeal nerve, lymph nodes, and fatty tissue.[1] The space is bounded anteriorly by the ascending aorta, posteriorly by the descending aorta, medially by the left main bronchus, and laterally by mediastinal pleura.

"Aortopulmonary window" also refers to a congenital heart defect similar in some ways to persistent truncus arteriosus.[2] Persistent truncus arteriosus involves a single valve; aortopulmonary window is a septal defect.[3]

See also[edit]


  1. ^ Dewey, Marc; Magid, Donna; Wheeler, Paul S.; Hamm, Bernd (1 April 2004). "Aortopulmonary Window or Angle on the Chest Radiograph?". American Journal of Roentgenology. 182 (4): 1085–1086. doi:10.2214/ajr.182.4.1821085. ISSN 0361-803X. PMID 15039195. 
  2. ^ Stevenson, Roger E.; Hall, Judith G. (2006). Human malformations and related anomalies. Oxford University Press US. pp. 119–. ISBN 978-0-19-516568-5. Retrieved 19 July 2011. 
  3. ^ Donoghue, Veronica B.; Bjørnstad, Per G. (2007-11-29). Radiological Imaging of the Neonatal Chest. Springer. pp. 330–. ISBN 978-3-540-33748-5. Retrieved 19 July 2011.