“…It has been described in association with antibiotics (Cummins, 1961;Hale and Cosgriff, 1957;Pearce and Dineen, 1960;Cohen, McNeill, and Wells, 1973), postoperatively (Pettet, Baggenstoss, Dearing, and Judd, 1954), with primary colonic diseases, especially those producing obstruction (Kleckner, Bargen, and Baggenstoss, 1952), and with various systemic conditions .…”