Diverticular disease of colon

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Q) False about diverticular disease of colon is  a) 10-20% of all diverticular disease of colon develop symptoms. Rest remain asymptomatic b) Low fiber diet is implicated in etiology c) Sigmoidoscopy is useful tool for evaluation of diverticulitis d) Elective colectomy in uncomplicated diverticulitis is rare and forms only 1% of cases with diverticular disease

Traction diverticula

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Q) What is true about traction diverticula of the esophagus? a) It is a common diverticulum at the lower end of esophagus b) Most  of these diverticula are symptomatic and require surgery c) Mediastinal fibrosis is a common etiologial factor d) They are most common on the left side