Cover illustration: Ch. 12, Fig. 12. A long strictureplasty in Crohn's disease. The incised gut is bent over in a loop and the posterior wall is sutured with a continuous seromuscular stitch. Ch. 23, Fig. 16. The steps in pouch construction. The beginning of the suture line for the anterior layer of a pouch; a small hole is made in the proximal limb of the pouch; completed pouch-anal stapled anastomosis.