In a congenital diaphragmatic hernia, which organ is typically found in the left lung?

• A. Heart
• B. Liver
• C. Bowel
• D. Stomach

Answer: (C)

In a congenital diaphragmatic hernia, particularly the Bochdalek type, the most commonly herniated organ into the thoracic cavity is the bowel. This occurs because the defect in the diaphragm allows abdominal contents to move up into the chest cavity, which typically happens on the left side due to the developmental aspects of the diaphragm.

When the bowel herniates into the thorax, it can cause significant pulmonary hypoplasia, as the herniated bowel occupies space that would otherwise be filled by lung tissue. This displacement hinders proper lung development because the lung lacks the space it needs to grow and expand normally during fetal development.

The presence of the bowel in the thoracic cavity is often recognized on imaging studies, and managing congenital diaphragmatic hernias usually involves surgical intervention to restore the anatomical positions of the organs. The other options presented involve organs that are either not found in the thorax in this condition or are not typical herniated contents associated with congenital diaphragmatic hernias.