Endoscopic spectrum of pouchitis and pouch disorders

(A) Normal pouch with owls' anatomy of the pouch inlet and the tip of "J".
(B) Diversion pouchitis.
(C) Classic pouchitis with diffuse inflammation.
(D) Clostridium difficile pouchitis with pseudomembrane.
(E) Ischemic pouchitis with asymmetric distribution of inflammation in the pouch body.
(F) Cuffitis.
(G) Crohn disease with pouch vaginal fistula opening (arrow).
(H) Anastomotic sinus due to surgical leak (arrow).