Anomalous left pulmonary artery without sling formation.
Aslihan Semiz-Oysu1, Ipek Basaran, Hakan Barutca
1Department of Radiology, Umraniye Training and Research Hospital, Ümraniye Eğitim ve Araştırma Hastanesi, Adem Yavuz Cad. No: 1, Ümraniye, Istanbul, 34766, Turkey, asoysu@gmail.com.
Pediatric Cardiology
|August 11, 2012
Summary
A rare case of aberrant left pulmonary artery, mimicking pulmonary artery sling, was found without true sling formation. This anomaly, associated with tracheal stenosis, highlights the importance of precise diagnosis in congenital heart and airway defects.
Area of Science:
- Cardiology
- Thoracic Surgery
- Pediatric Surgery
Background:
- Pulmonary artery sling (PAS) malformation is a rare congenital anomaly where the left pulmonary artery arises from the right pulmonary artery and encircles the trachea.
- PAS is often associated with other congenital anomalies, including tracheal stenosis, leading to significant airway compromise.
Observation:
- A case is presented of an aberrant left pulmonary artery originating from the right pulmonary artery, anatomically distinct from a true pulmonary artery sling.
- This aberrant vessel coursed anterior to the trachea, precluding the characteristic encirclement seen in PAS.
- The patient also exhibited long-segment proximal tracheal stenosis and other congenital malformations typically seen in PAS complex.
Findings:
- The aberrant left pulmonary artery did not cause airway compression, suggesting the tracheal stenosis was a primary congenital defect.
- Histopathological examination revealed features consistent with primary tracheal maldevelopment.
Implications:
- This case expands the spectrum of pulmonary artery anomalies and their association with tracheal defects.
- Differentiating aberrant pulmonary arteries from true pulmonary artery slings is critical for accurate diagnosis and management of associated congenital airway stenosis.
- Understanding the etiology of tracheal stenosis in the context of complex congenital heart disease is crucial for surgical planning and patient outcomes.
