This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neoplasia, Subject name: Pathology
[{'content': 'Feature (s) of dyskeratosis is/are all except : (PGI June 2007) \nSelect and explain. \nA. Premalignant leukoplakia, B. Atrophy and telangiectasia, C. Hypopigmented macules, D. Most common congenital syndrome involving nails', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. D Most common congenital syndrome involving nails Ref- Andrews' Diseases of Skin, 12E (2016) Dyskeratosis congenita is a rare congenital syndrome characterized by cutaneous poikiloderma, nail dystrophy, and premalignant leukoplakia. Atrophy and telangiectasia are accompanied by tan-gray, mottled, hyperpigmented and hypopigmented macules or reticulated patches.", 'role': 'assistant'}]