There is a marked shift of mediastinal structures to the right and the left lung is hypoplastic. Congenital Diaphragmatic Hernia-Bochdalek type. Bochdalek hernia is the most common form of diaphragmatic hernia and is the most common surgical emergency of the neonatal period. This anomaly is secondary to incomplete closure of the posterior pleuroperitoneal communication of Bochdalek. Herniated bowel most commonly passes through a posterior diaphragmatic defect on the left side, resulting in pulmonary hypoplasia of the left lung with shift of the mediastinal structures to the right side.
Treatment involves repositioning herniated bowel into the abdomen.
The Requisites, 2nd Edition.