For detection of carcinoma lip, stain used is?
Ans. (c) Toulidine blue(Ref: Early Diagnosis and Treatment of Cancer Series: Head and Neck Cancers, Wayne Koch Pg. 54)*Toluidine blue stain is used as a marker to differentiate lesions at high risk of progression in order to improve early diagnosis of oropharyngeal carcinomas.*Toluidine blue, an acidophilic metachromatic dye of thiazine group selectively stains acidic tissue components (sulfates, carboxylates and phosphate radicals), thus staining DNA and RNA.
Giemsa
Crystal violet
Toulidine blue
Hematoxylin and eosin
Histo Pathology