24. Stocker JT, Kagan-Hallet K. Extralobar pulmonary sequestration: analysis of 15 cases. Am J Clin Pathol 1979 72: 917–925. 25. Stocker JT. Sequestrations of the lung. Semin Diagn Pathol 1986 3: 106–121. 26. Stocker JT, Malczak HT. A study of pulmonary ligament arteries. Relationship to intralobar pulmonary sequestration. Chest 1984 86: 611–615. 27. Chapdelaine J,BeaunoyerM,St-VilD, etal. anunderestimatedpresentation? J PediatrSurg 2004 39: 677–680. 28. Stocker JT, Madewell JE. Persistent interstitial pulmonary emphysema: another complication of the respiratory distress syndrome. Pediatrics 1977 59: 847–857. 29. Mani H, Suarez E, Stocker JT. The morphologic spectrum of infantile lobar emphysema: a study of 33 cases. Paediatr Respir Rev 2004 5: Suppl A, S313–S320. 30. Williams HJ, Johnson KJ. Imaging of congenital cystic lung lesions. Paediatr Respir Rev 2002 3: 120–127. 31. Tireli GA, Ozbey H, Temiz A, Salman T, Celik A. Bronchogenic cysts: a rare congenital cystic malformation of the lung. Surg Today 2004 34: 573–576. J.T. STOCKER, A.N. HUSAIN 20