Which of the following is wrong statements:
Koilonychia in Vit B12 deficiency
Oncholysis in Psoriasis
Mees lines in Arsenic poisoning
Pterygium of nailis in Lichen Planus
Ans: A i.e. Koilonychia in Vit B12 deficiency. Koilonychia (Spoon nail) The nail is concave with raised edges. Seen in Iron Deficiency Anemia,Hypothyroidism,Lichen Planus.