Table 3: Magnifying endoscopic (ME) classifications following crystal violet staining and pathognomonic histological features of ulcerative colitis.

Magnifying endoscopic (ME) classification Severe mucosal inflammationCrypt abscessGoblet cell depletionTotal case
PresentAbsentPresentAbsentPresentAbsent

ME-A0505055
ME-B814814121022
ME-C9072819
ME-D5151606
value 0.0005 0.01 0.000542

ME-A: regular arrangement of normal-appearing round to oval pits; ME-B: irregular arrangement with/without enlarged spaces between the even pits; ME-C: irregular pits in size and shape with more irregular arrangement of pits compared to ME-B; and ME-D: disrupted or disappeared pits.