title: Differential diagnosis of Crohn's disease and significance of biopsy.
mesh_terms: D001706:Biopsy; D003093:Colitis, Ulcerative / Q000175:diagnosis; D003424:Crohn Disease / Q000175:diagnosis* / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D014385:Tuberculosis, Gastrointestinal / Q000175:diagnosis