<prompt> Hernia occurring in a potential space posterior to gastrojejunostomy is calledBochdaleks HerniaPetersons HerniaLittres HerniaRichters Hernia  <response>: Answer- B. Petersons HerniaPetersen hernias are a type ofinternal hernia which occurs in the potential space posterior to a gastrojejunostomy.This hernia is caused by the herniation of intestinal loops through the defect between the small bowel limbs, the transverse mesocolon and the retroperitoneum, after any type of gastrojejunostomy. 