<unk>  may be helpful in the diagnosis of severe ulcerative colitis and in differentiating ulcerative colitis from Crohn's disease. Initial changes in the mucosa may not be detectable on<unk> .
Ulcerative colitis MRI
Ulcerative colitis physical examination
Ulcerative colitis laboratory findings
Infectious colitis endoscopy
Crohn's disease CT
Ischemic colitis MRI
Allergic colitis physical examination
Ischemic colitis abdominal x ray