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Horseshoe lung associated with scimitar syndrome
  1. Korcan Aysun Gonen1,
  2. Yakup Canitez2,
  3. Ozlem Mehtap Bostan2 and
  4. Zeynep Yazici3
  1. 1 Department of Radiology, Namik Kemal University, Tekirdag, Turkey
  2. 2 Department of Pediatrics, Uludag University, Bursa, Turkey
  3. 3 Department of Radiology, Uludag University, Bursa, Turkey
  1. Correspondence to Professor Zeynep Yazici, zyazici{at}


Horseshoe lung is a rare congenital anomaly and mostly accompanied by scimitar syndrome. Most aspects of this complex anomaly can be demonstrated via multidetector CT (MDCT). We present two baby girls who had horseshoe lung associated with right lung hypoplasia and scimitar vein. The chest roentgenograms showed displacement of the heart and mediastinum to the right with smaller right lung. Echocardiography revealed dextroposition, secundum atrial septal defect and bilateral slight peripheral pulmonary stenosis in the first case and dextroposition, severe pulmonary hypertension, secundum atrial septal defect and tricuspid regurgitation in the other one. On thoracic MDCT, the right lung and pulmonary artery were hypoplastic with cardiomediastinal shift to the right. There was an abnormal right pulmonary vein draining into the inferior vena cava on the lower zone of the right lung (scimitar vein). The posterobasal portions of the both lungs were fused through a midline isthmus behind the heart.

  • mechanical ventilation
  • radiology (diagnostics)
  • respiratory system
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  • Contributors KAG drafted the article and approved the final version. YC and OMB contributed to the conception and design and prepared the paper initially. ZY revised the manuscript critically for important intellectual content.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Presented at Presented as a poster at the European Society of Paediatric Radiology 50th Annual Meeting, 3–7 June 2013, Budapest, Hungary.

  • Patient consent for publication Parental/guardian consent obtained.

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