Diverticulitis of isolated jejunal diverticulum complicated by small bowel obstruction secondary to de novo enterolith formation.

Jejunoileal diverticula (JD) are an uncommon condition most prevalent in the sixth and seventh decade of life. Although mostly asymptomatic, JD can be complicated by perforation, diverticulitis, abscess, bleeding, fistula, and small bowel obstruction (SBO) secondary to enterolith formation. There are a limited number of cases describing JD complicated by SBO secondary to enterolith formation. Most of these cases are not associated with diverticulitis and multiple JD are present in all but one previously reported case. We present a case of diverticulitis of a large, isolated jejunal diverticulum complicated by de novo enterolith-induced SBO initially diagnosed as intussusception based on computerized tomography (CT) imaging. Our main objective is to increase awareness that isolated JD are not as readily evident on imaging as cases presenting with multiple JD, but nevertheless should be considered as possible etiology of acute abdomen.