Slide 5 
A higher power view shows the mucosal ulcer to better advantage. There is prominent submucosal inflammation with scattered non-caseating granulomas. These sarcoid-like granulomas are found in about 60% of the cases of Crohn's disease (hence the alternate name "granulomatous colitis"). They are not found in ulcerative colitis.

Slide 6
Progressively higher magnification of the granulomatous inflammation of the submucosa.

Slide 7
Progressively higher magnification of the granulomatous inflammation of the submucosa.