Fig. 3From: o-Aminoazotoluene, 7,12-dimethylbenz[a]anthracene, and N-ethyl-N-nitrosourea, which are mutagenic but not carcinogenic in the colon, rapidly induce colonic tumors in mice with dextran sulfate sodium-induced colitisHistopathology of the colons of mice from Non-treatment- (A), DSS- (B), AAT- (C), AAT/DSS- (D), DMBA- (E), DMBA/DSS- (F), ENU- (G) and ENU/DSS- (H) groups. H& E stainBack to article page