Differentiation between intestinal Behçet’s disease and Crohn’sdisease based on endoscopy

Area of Science:

• Gastroenterology
• Internal Medicine
• Inflammatory Bowel Disease

Background:

• Intestinal Behçet’s disease (BD) and Crohn’s disease (CD) present with overlapping clinical manifestations, making differential diagnosis difficult.
• Endoscopy is a crucial tool for evaluating bowel lesions and distinguishing between these two conditions.

Purpose of the Study:

• To identify clinical manifestations that are easily confused between intestinal BD and CD.
• To evaluate the efficacy of endoscopy in differentiating intestinal BD from CD using overlapping signs.

Main Methods:

• Retrospective analysis of data from 111 patients with intestinal BD and 81 patients with CD.
• Logistic regression was used to develop a prediction model based on endoscopic findings.
• Diagnostic efficacy was assessed using the area under the receiver operating characteristic (ROC) curve.

Main Results:

• Mucocutaneous lesions were more common in intestinal BD, while gastrointestinal symptoms were more frequent in CD.
• Key differentiating endoscopic findings included solitary ileocecal ulcers, perianal abscess, single-segment involvement, round ulcers, obstruction, and fistulas.
• The prediction model achieved an area under the ROC curve of 0.874, with a sensitivity of 76.3% and specificity of 80.6% at a cutoff score of 1.5.

Conclusions:

• Mucosal injuries were less frequent in intestinal BD compared to CD.
• A differentiation model incorporating multiple endoscopic features demonstrated reliability in distinguishing intestinal BD from CD.