Abstract
During the past four years, 36 cases of ulcerative colitis were examined using dye scattering method in colonof ib-erscopy. Abnormal minute findings of the mucosal surface in this disease were classified into four categories; Grade II ; there are course and asymmetrical features accompa-nied with multiple erosions or ulcerations, Grade II ; there are irregular and asymmetrical features on the mucosal surface, but erosions and/or ulcerations are not, apparent, Grade I ; almost normally arranged spindle or oval fine structures but sporadic small depression in the mucosa, and Grade 0 ; normal findings. And this classification of the minute mucosal appeara-nce was correlated with the histological process of this disease. And the stainability of methylene blue solution was also corresponding to the healing process of this les-ion. As above mentioned, this method was useful for recog-nizing the healing process and the expantion of this dis-ease.
