A rare case of iron-deficiency anemia rapidly progressing to a life-threatening event

Giant colonic diverticula are extremely rare; however, they should be considered in a patient with a history or susceptibility to diverticular disease because of the nonspecific presentation and life-threatening complications. Giant colonic diverticula often are overlooked because of their nonspecific gastrointestinal (GI) symptoms, leading to complications of obstruction, perforation, abscess formation, and sepsis. A rare and unusual presentation of a giant colonic diverticulum is the development of a bezoar. This case describes a patient whose GI bleeding led to the diagnosis of a giant colonic diverticulum with a bezoar.