This specific sign is seen in:
Lead poisoning
Organophosphorus poisoning
Arsenic poisoning
Zinc poisoning
Rain drop Pigmentation- Brownish pigmentation present on palm and trunk. It occurs in chronic Arsenic Poisoning. Chronic arsenic Poisoning- Skin- Rain drop pigmentation, Hyperkeratosis of palms and soles. Nails- Aldrich mees lines. Sensory neuropathy Black foot disease (Gangrene of peripheries) Tests done for diagnosis of Arsenic Poisoning- Marsh test Reinsch test NAA AAS