[Sigmoid diverticulitis in adolescent. Case report].

Background: Few cases have been reported in children and adolescents of sigmoid diverticulitis. Most of the case reports in medical literature are associated with true congenital diverticula and genetic diseases of collagen synthesis.
Clinical Case: 13 year-old female who was admitted to General and Endoscopic Surgery service with diagnosis of complicated appendicitis. Laparotomy was performed finding complicated sigmoid diverticular disease. Lavage, sigmoidectomy and primary anastomosis were performed. The histopathological findings reported a perforated pseudo-diverticulum of the sigmoid colon with peritonitis. The patient was discharged 72 hours after surgery and no complications were reported.
Conclusion: There are only case reports about colonic diverticulitis in children and adolescents, and its etiology has not yet been well established. This patient had sigmoid pseudo-diverticula and did not present genetic concomitant disease. This case is an exception to data reported on literature about diverticular disease in this population.