Burton's lines and metaphyseal bands on imaging are most characteristic of poisoning by which metal?

Burton's lines and metaphyseal bands on imaging are most characteristic of poisoning by which metal?

• A. Lead
• B. Arsenic
• C. Mercury
• D. Cadmium

Answer: (A)

Lead exposure produces two classic signs seen in imaging and the mouth. Burton’s line is a bluish-black gingival margin caused by lead sulfide deposition. In children, chronic exposure also creates dense metaphyseal bands, or lead lines, along the growth plates of long bones on X-ray. Together, these mucosal and skeletal findings are strongly indicative of lead poisoning. Other metals cause different patterns—arsenic may show nail changes like Mees lines, mercury can lead to acrodynia and neuro symptoms, and cadmium has its own renal and bone effects—so the combination of a gingival line and metaphyseal lead lines most specifically points to lead toxicity.

Lead exposure produces two classic signs seen in imaging and the mouth. Burton’s line is a bluish-black gingival margin caused by lead sulfide deposition. In children, chronic exposure also creates dense metaphyseal bands, or lead lines, along the growth plates of long bones on X-ray. Together, these mucosal and skeletal findings are strongly indicative of lead poisoning. Other metals cause different patterns—arsenic may show nail changes like Mees lines, mercury can lead to acrodynia and neuro symptoms, and cadmium has its own renal and bone effects—so the combination of a gingival line and metaphyseal lead lines most specifically points to lead toxicity.