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
Feature (s) of dyskeratosis is/are all except : (PGI June 2007) 
Select and explain. 
A. Premalignant leukoplakia, B. Atrophy and telangiectasia, C. Hypopigmented macules, D. Most common congenital syndrome involving nails
D: Most common congenital syndrome involving nails
Answer: D: Most common congenital syndrome involving nails 
Explanation: 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.