Historical Background In 1849 Cruveilhier first described colonic diverticula. In 1853 Virchow first described the inflammatory disease and named it diverticulitis. Bristowe, Jones, Habershon, Lane, Graser, and Bland-Sutton contributed to the early literature.1In 1907 Mayo reported five cases of sigmoid resection for diverticulitis, and he is credited with the first surgical application. The greatest impetus to the study of this entity came in 1913, when de Quervain, in Switzerland, made the diagnosis by x-ray. The next year Case, in the United States, reported criteria for x-ray diagnosis.2It soon became evident that diverticulosis and diverticulitis were most frequently found in the left colon. This report, however, is concerned primarily with the right colon. The first case of cecal diverticulitis was described by Portier in 1912. Pathology Diverticulum of the right side is a pathological entity distinct from that of the left side. Right-sided diverticula are usually solitary.