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A Review of Linear Lichen Planus Case Reports
Morgan A Rousseau1, Emelie E Nelson2, Rashid M Rashid3
1Resident Physician, Internal Medicine, The University of Texas Health Science Center at Houston John P. and Kathrine G. McGovern Medical School, Houston, TX.
The American Journal of Dermatopathology
|August 16, 2024
Summary
Linear lichen planus (LLP) is a rare skin condition presenting as itchy, purple bumps. This review analyzed 51 cases, detailing triggers, clinical features, and variable treatment outcomes for this uncommon lichen planus variant.
Area of Science:
- Dermatology
- Pathology
Background:
- Lichen planus is a common inflammatory condition.
- Linear lichen planus (LLP) is a rare variant with a distinct presentation.
Purpose of the Study:
- To critically review all reported cases of LLP.
- To analyze proposed etiology, clinical and histologic traits, treatment, and recurrence.
Main Methods:
- A comprehensive PubMed search was conducted from inception through March 2023.
- 51 unique cases of LLP were identified and data extracted.
- Data included patient demographics, lesion characteristics, etiology, treatment, and recurrence.
Main Results:
- LLP showed no significant gender or age predilection.
- Common presentation included unilateral pruritus affecting various body areas.
- Identified triggers included metal implants, vaccinations, infections, malignancy, and pregnancy.
Conclusions:
- LLP exhibits variable clinical and histologic features with diverse triggers.
- Treatment and recurrence rates for LLP are inconsistent.
- Dermatologists must recognize LLP for prompt diagnosis and management to reduce morbidity.
