Rain drop pigmentation is seen in: (A) Chronic lead poisoning, (B) Chronic Arsenic poisoning, (C) Chronic Mercury poisoning, (D) All of the above
Answer is B. chronic arsenic exposure from occupations for polonged periods 1-20 years may develop diffuse pigmentation predominant over trunk and is superimposed by 2-10mm macules of depigmentation producing characteristic rain drop appearence. IADVL textbook of dermatology, disorders of pigmentation page 786