Surgical management of duodenal Crohn's disease

Figure 1 The imaging examinations of patients with an internal fistula between the duodenum and colon. A: The abdominal computed tomography image showed the existence of an internal fistula between the duodenum and colon; B: The gastrointestinal radiography showed the existence of an internal fistula between the duodenum and colon; C: The ileocecus can be accessed through the internal duodenal fistula under gastroscopy; D: The internal fistula between the duodenum and colon under colonoscopy; E: The placement of jejunal nutrition tube under gastroscope.