Radiographically, Crohn Disease Can Be Differentiated from Ulcerative Colitis Because

Multiple Choice

Radiographically, Crohn disease can be differentiated from ulcerative colitis because

A) the transmural inflammation penetrates all layer of the bowel wall in Crohn disease.
B) Crohn disease is limited to the mucosal and submucosal layers of the bowel wall.
C) the retrograde involvement in Crohn disease rarely reaches past the terminal ileum.
D) Both B and C are correct.