Crohn's Disease of the Gastrointestinal Tract

abdominal abscess acid activity acute agents antibodies antigens appear areas associated bacterial bile biopsy blood carcinoma cause cells changes chronic clinical colon common complexes complications course Crohn's colitis Crohn's disease deficiency demonstrated described diagnosis diarrhea differentiation disorders effects Engl especially et al etiology evidence examination experience extensive factors findings fistulas formation frequently Gastroenterology gastrointestinal granulomatous ileal ileitis ileostomy immune important incidence increased indicated inflammation inflammatory bowel disease initial injection instances involvement Kirsner JB large intestine lesions limited loss lymphocytes mass mechanism mucosa normal noted observed obstruction occasionally occur operation oral pathologic patients with Crohn's perforation possible present problems radiologic reaction recently rectal recurrence regional enteritis reported resection response seen serum severe short bowel syndrome significance small bowel small intestine steroids suggested surgery surgical symptoms Table terminal ileum therapy tion tissue tract treatment ulcerative colitis usually wall