Figure 7
From: A contemporary and critical appraisal of ‘indeterminate colitis’
Patient with diffuse severe collagenous colitis. In this medium-power image, the crypts appear linear, but foreshortened, and there is evidence of plasmacytosis in the base of the mucosa similar to UC. In addition, there are superficial erosions and surface epithelial degeneration, thickening and irregularity of the subepithelial collagen layer, and multiple giant cells related to degenerated collagen, some forming loose granulomas.
