Skin Which of the following is wrong statements: A Koilonychia in Vit B12 deficiency B Oncholysis in Psoriasis C Mees lines in Arsenic poisoning D Pterygium of nailis in Lichen Planus 💡 Explanation Which of the following is wrong statements: ✓ Correct Answer: A. Koilonychia in Vit B12 deficiency