Quality of ulcer healing in gastrointestinal tract: Its pathophysiology and clinical relevance

Figure 12 Morphological characteristics of active ulcer in patients with Crohn’s disease. Shape of ulcer edge, flat (A) or non-flat (B); fold convergence, negative or positive (C); shape of ulcer base, flat (D) or non-flat (E); stenosis, negative or positive (F); neighboring ulcer, negative (G) or positive (H); width of ulcer, narrow (I) or wide (J).