A normal digital rectal examination was performed.  The PCF-160 AL was inserted into the anus and advanced to the cecum without difficulty, as identified by the ileocecal valve, cecal stump, and appendical orifice.  All mucosal aspects thoroughly inspected, including a retroflexed examination.  Withdrawal time was greater than six minutes.  Unfortunately, the terminal ileum could not be intubated despite multiple attempts.