Subacute parathion poisoning with erysipeloid-like lesion

A case of subacute parathion poisoning with an erysipeloid-like eruption of the left index finger is reported. Laboratory investigations showed no growth of pathogenic bacteria and cholinesterase activity in the blood showed a rise 10 days after the poisoning. Further blood investigations 6 weeks later showed subnormal levels of cholinesterase activity indicating chronic parathion poisoning.