VIM and cancer: When analysed with regard to the morphological features of the neoplasm, the expression of vimentin by neoplastic cells was significantly correlated only with poor histological differentiation (using the vimentin cutoff of 1%, 76 of 148 poorly differentiated cancers compared with 78 of 194 well and moderately differentiated cancers; using the vimentin cutoff of 10%, 53 of 143 poorly differentiated neoplastic cells vs 41 of 194 well and moderately differentiated cancers) (P=0.05 and P<0.01 for vimentin cutoffs 1% and 10%, respectively).