CASE 117
History: A 75-year-old man presents with bloody diarrhea.
1. Which of the following should be included in the differential diagnosis of the imaging finding shown in the figure? (Choose all that apply.)
2. Which of the following statements regarding colonic amebiasis is true?
A. Usually involves the left colon
B. Typically involves the terminal ileum
C. Usually appears as a diffuse ulcerative colitis
D. Sometimes occurs as a short masslike narrow segment
3. What is the typical change produced by ulcerative colitis in the terminal ileum?
A. Dilated gaping terminal ileum
B. Narrowing, nodular mucosa, fissures, and fistulas
C. Asymmetrical luminal narrowing with spiculated contour
D. Mucosal nodularity with fold thickening and superficial ulceration
