Lichtenberg Figure
Definition
Branching, ferning erythematous skin pattern produced by superficial flashover of lightning current. Pathognomonic of lightning strike. Fades within 24-48 hours; early documentation is essential.
- Visual appearance
- Reddish, fern-like or arborescent branching pattern on skin
- Duration
- Fades within 24 to 48 hours
- Forensic significance
- Pathognomonic sign of lightning strike (specific and diagnostic)
Common questions
What causes a Lichtenberg figure?+
It forms when lightning strikes the skin. The electrical discharge travels along skin capillaries, creating a branching pattern. The pattern is pathognomonic of lightning strike, meaning it uniquely identifies that type of injury.
How long does a Lichtenberg figure last?+
The pattern fades within 24 to 48 hours. Because it disappears quickly, early photography is essential for documentation and forensic evidence.
What does a Lichtenberg figure look like?+
It appears as a reddish, fern-like or branching pattern on the skin. The finely divided, arborescent appearance is very distinctive and resembles branches of a fern or tree.
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Explained in these topics
- Electrical, Thermal, Regional and Traffic InjuriesA transient, fern-like or arborescent reddish skin pattern produced by lightning strike, caused by electrical discharge along skin capillaries. Fades within ho...
- Electrocution: Low-Voltage, High-Voltage and LightningBranching, ferning erythematous skin pattern produced by superficial flashover of lightning current. Pathognomonic of lightning strike. Fades within 24-48 hour...