Crescentic fold disease; Diverticular disease-associated chronic colitis; Isolated sigmoiditis; Segmental colitis associated with diverticulosis (SCAD)
Diverticular colitis can be defined operationally as mucosal inflammation within a colon segment containing diverticula. It primarily affects the sigmoid colon. It is however distinct from diverticulitis, which is inflammation of one or more diverticula and the surrounding connective and muscle tissues. Diverticular colitis is noteworthy for mimicking chronic inflammatory bowel disease (IBD), both endoscopically and histologically.
Only a subset of patients with diverticulosis coli also develops diverticular colitis. Estimates vary between less than 1% and 4%. The true incidence and prevalence are probably underestimated as many patients do not develop worrisome symptoms. The most common presenting complaints are cramping left lower quadrant pain or tenesmus, constipation or diarrhea which...