Saw tooth appearance on barium study is seen in: (A) Intussusception, (B) Ileocecal TB, (C) Ischemic colitis, (D) Diveiculosis
Answer is D. Diveiculosis Saw-tooth appearance to the colon, usually sigmoid, with shoening of the bowel, crowding of haustra and picket-fencing of folds Ischemic colitis - thumb printing sign.