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Pigmentary demarcation lines: Three cases encapsulating a benign condition.
Natalia Chalupczak1, Alexander Woods2, Allison Kirchner2
1Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA.
Journal of Family Medicine and Primary Care
|February 24, 2025
Summary
Pigmentary demarcation lines (PDL) are distinct skin markings showing abrupt changes in pigmentation. This review highlights their occurrence and benign nature across diverse populations to increase medical awareness.
Area of Science:
- Dermatology
- Human Pigmentation Biology
Background:
- Pigmentary demarcation lines (PDL) present as abrupt transitions between hyperpigmented and normal skin.
- These lines are commonly observed in individuals of African, Hispanic, and Japanese descent, but can occur in Caucasians.
- PDL distribution is theorized to align with "Voigt's lines," associated with peripheral nerve pathways.
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