Fig. 3From: Successful treatment of rectovaginal fistula and rectal stenosis due to perianal Crohn’s disease by dual-port laparoscopic abdominoperineal resection: a report of two casesInsertion of a multichannel port at the colostomy site through a 25-mm skin incision in the right lower quadrant. A 5-mm trocar was inserted via the umbilicusBack to article page