Total sequestration of the right lung

Area of Science:

• Pediatric Cardiology
• Thoracic Surgery
• Neonatology

Background:

• Congenital lung abnormalities can present with severe respiratory distress in neonates.
• Pulmonary artery anomalies are rare but critical conditions requiring prompt diagnosis.
• Right pleural opacification in neonates necessitates thorough investigation of underlying lung and vascular structures.

Purpose of the Study:

• To describe a rare case of a neonate with a hypoplastic right lung and absent right pulmonary artery.
• To highlight the diagnostic challenges and management of congenital pulmonary vascular anomalies.
• To discuss the clinical course and outcome of surgical intervention in such cases.

Main Methods:

• Case report of a 2-day-old infant with severe respiratory distress and cyanosis.
• Preoperative imaging and hemodynamic assessment including evaluation of pulmonary arteries and patent ductus arteriosus.
• Surgical intervention involving right pneumonectomy.

Main Results:

• The infant presented with a totally opacified right pleural cavity.
• Preoperative studies revealed absence of the right pulmonary artery and a patent ductus arteriosus with elevated left pulmonary artery pressure.
• The hypoplastic right lung received its blood supply via multiple vessels through the diaphragm.
• Initial improvement was observed post-right pneumonectomy.

Conclusions:

• Congenital absence of the pulmonary artery with a hypoplastic lung supplied by systemic collaterals is a rare condition.
• Management requires a multidisciplinary approach involving neonatology, cardiology, and thoracic surgery.
• Despite surgical intervention, outcomes can be poor due to underlying pulmonary hypertension and respiratory insufficiency.