Table 1

 Histological scoring system for Crohn’s disease

*A moderate increase defined as being up to twice the normal number of cells; severe increase more than twice the normal number.
AContinuity of surface epithelium0Normal
1Patchy/discontinuous
2Ulcers
BInfiltration of polymorphonuclear leucocytes in the lamina propria and epithelium0Normal
1Moderate increase
2Severe increase
CInfiltration of mononuclear leucocytes in the lamina propria0Normal
1Moderate increase
2Severe increase
DInflammatory infiltrate in the submucosa0Normal
1Moderate increase
2Severe increase
EInflammatory infiltrate in the muscularis propria0Normal
1Moderate increase
2Severe increase