The differential diagnosis for such findings includes: small bowel lymphoma, tuberculosis, and ulcerative colitis

• the normal appearance of the cecum makes tuberculosis less likely
• the absence of lymphadenopathy or bowel mass makes lymphoma less likely
• the normal appearance of the rectum makes ulcerative colitis less likely

Endoscopy with biopsy would provide the diagnosis. The main role of radiology in Crohn's disease is follow up and detection of complications.