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Malformation of bronchopulmonary foregut with systemic and pulmonary arterial blood supply
Insights
This rare congenital malformation involves a bronchopulmonary foregut defect connecting the esophagus to a lung lobe. The case highlights unusual arterial supply and blood flow patterns within the sequestered segment.
Area of Science:
- Pediatric Surgery
- Thoracic Surgery
- Congenital Malformations
Background:
- Congenital malformations of the bronchopulmonary foregut are rare developmental anomalies.
- These defects can involve abnormal connections between the foregut and lung structures.
- Previous reports of esophageal communication with lung sequestrations are limited.
Observation:
- A six-month-old boy presented with a congenital malformation of the bronchopulmonary foregut.
- The anomaly featured a communication between the esophagus and a sequestered lung lobe.
- This specific case involved communication from the mid-esophagus to a right apical sequestration.
Findings:
- The sequestered lung segment exhibited an unusual dual blood supply.
- It received arterial supply from four systemic arteries originating from the thoracic aorta.
- Additionally, it was supplied by branches from the right pulmonary artery.
Implications:
- The sequestration demonstrated significant intrapulmonary shunting of blood.
- Blood flowed from systemic to pulmonary arteries, reversing flow in pulmonary arterial branches.
- This case expands the understanding of rare bronchopulmonary foregut malformations and their complex vascular dynamics.
Abstract:
A case of congenital malformation of the bronchopulmonary foregut with communication between the esophagus and sequestered lobe is reported in a six-month-old boy. Only 29 similar cases have been reported previously, and this case was especially unusual in that the communication was from the middle portion of the esophagus to a right apical sequestration. Another unusual feature was that the sequestered segment was supplied by four systemic arteries from the thoracic aorta, as well as by branches from the right pulmonary artery. Within the sequestration, there was shunting of blood from the systemic to pulmonary arterties with reversal of flow in the pulmonary arterial branches.