Explain the pathogenesis of peptic ulcer. Describe the three major complications of peptic ulcer and their treatment. Name the methods of treatment. Name the causes, clinical manifestations, and...

Explain the pathogenesis of peptic ulcer. Describe the three major complications of peptic ulcer and their treatment. Name the methods of treatment.

Name the causes, clinical manifestations, and complications of intestinal obstruction, carcinoma of the colon, and diverticulosis of the colon. Explain their treatment.