 In front of the fascia anterior to the perinephric space (also known as Toldt's fascia) is the anterior pararenal space, which contains the pancreas, ascending and descending colon, and second through fourth parts of the duodenum.The fascia posterior to the perinephric space was named Zuckerkandl's fascia.Posterior to this lies the posterior paranephric space which does not contain any abdominal organs.