This is a review of selected articles from the literature over the past year and a half on a variety of colonic disorders. Case reports of neutropenic colitis,Balantidium coliinfestation, amebic colitis, tuberculous colotis, andListeriainfection are included. Eleven reports of collagenous and microscopic colitis are summarized. Two studies dealing with colonic concentrations of short-chain fatty acids are discussed. Other areas covered include brown bowel syndrome, abdominal epilepsy, asymptomatic ileocolitis, and diabetic diarrhea.