ANXA1 and oral lichen planus: In this context, we observed that (the undifferentiated) basal/suprabasal layer(s) of epithelium did not stain for Annexin A1, a finding more prominent for OC than control or OLP specimens; the finding in relation to OLP is likely related to liquefaction degeneration of basal and suprabasal layers of the epithelium which is a characteristic feature of this condition.