A 40-year old man presented with acute onset pain and swelling of left great toe. On X-ray, punched out lytic lesion seen on phalanx with sclerotic margins and overhanging bony edges. Diagnosis is:: (A) Gout, (B) Rheumatoid ahritis, (C) Psoriatic ahritis, (D) Reiter's syndrome
Answer is A. Ans. a. Gout