Areas of carcinoma of oral mucosa can be identified by staining with:
Correct Answer: 2% toluidine blue
Description: Toluidine Blue Toluidine blue is a basic metachromatic dye with high affinity for acidic tissue components, thereby staining tissues rich in DNA and RNAQ. Wide applications both as vital staining in living tissues and as a special stain used in vivo to identify dysplasia and carcinoma of the oral cavityQ.
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