Dental General 1753717c Wrong statement is – A Mees line in arsenic poisoning B Pterygium of nails in Lichen planus C Onycholysis in Psoriasis D Koilonychia in Megaloblastic Anemia (B12 def) High-Yield Explanation Koilonychia is seen in iron deficiency anemia (not in megaloblastic anemia). Mees line is seen in Arsenic poisoning. Pterygium is diagnostic for lichen planus. Psoriasis can cause onycholysis