input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A young healthy male patient presented with abdominal pain and history of altered bowel habits from the last 6 months. On CT examination, there was dilated distal pa of ileum, thickened ileocecal junction with thickened cecum with presence of sacculations on the antimesenteric border. The vascularity of adjoining mesentery is also increased and there is surrounding mesentery fat. Which of the following is not a differential diagnosis?   (A) Ulcerative colitis   (B) Crohn's disease   (C) Tuberculosis   (D) Ischemic bowel disease
output: ['(D) Ischemic bowel disease <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', "(A) Ulcerative colitis  (B) Crohn's disease  (C) Tuberculosis  (D) Ischemic bowel disease <> possible answers", '  A young healthy male patient presented with abdominal pain and history of altered bowel habits from the last 6 months. On CT examination, there was dilated distal pa of ileum, thickened ileocecal junction with thickened cecum with presence of sacculations on the antimesenteric border. The vascularity of adjoining mesentery is also increased and there is surrounding mesentery fat. Which of the following is not a differential diagnosis? <> context']