1 Department of Gastroenterology, Northern General Hospital, Herries Road,
Sheffield S5 7AU, UK 2 Department of Pathology, Northern General Hospital, Herries Road, Sheffield S5
7AU, UK
Figure 2.Haematoxylineosin stain showing inflammation limited to the
mucosa and submucosa (double arrow) and not affecting the muscularis
propria. The mucosal surface demonstrates a well-demarcated ulcer (block
arrow)