Which of the following is not a premalignant condition oral cancer?: (A) Leukoplakia, (B) Erythroplakia, (C) Oral submucous fibrosis, (D) Systemic Sclerosis
Answer is D. Lesions with an increased risk of malignancy on oral cancerPremalignant condition:- Leukoplakia, Erythroplakia, speckled erythroplakia, chronic hyperplastic candidiasisConditions increasing risk:- Oral submucous fibrosis, syphilitics glossitis, sideropenic dysphagia (Peterson Kelly syndrome)The risk is doubtful:- Oral lichen planus, DLE, Dyskeratosis congenital.Ref: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 253