GI Radiology > Hernia > External > Bochdalek

Bochdalek Hernia

Bochdalek hernias occur through the posterior diaphragm as a result of a congenital malformation. During fetal development, the posterolateral portion of the diaphragm is the last portion to fuse. If this portion of the diaphragm fails to close, an opening is created called the foramen of Bochdalek. Because this defect is usually on the left (liver blocks a hernia on the right), it is best remembered as "back to the left" of the diaphragm. If the hernia is small, it is unlikely to produce symptoms and may be discovered incidentally in adulthood. Such a defect can simulate a mass. If the defect is larger and occurs in neonates, however, it may interfere with lung development and cause pulmonary hypoplasia. Multiplanar MRI is the best imaging technique for Bochdalek hernias.

 

Lateral CXRCoronal MRIAxial CT

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