Overview
What are the signs and symptoms of lichen planus?
Which structures are involved in lichen planus?
What are the variations in presentation of lichen planus?
How is lichen planus diagnosed?
What is the typical disease course of lichen planus?
Which medications are used in the treatment of lichen planus?
What are the treatment options for widespread lichen planus?
What is the pathophysiology in lichen planus?
What is the prevalence of lichen planus in the US?
How does the prevalence of lichen planus vary by geographic location?
What are the racial predilections for lichen planus?
How does the incidence of lichen planus vary by sex?
How does the prevalence of lichen planus vary by age?
What is the prognosis of lichen planus?
What is included in patient education for lichen planus?
Presentation
What clinical history is characteristic of lichen planus?
Which physical findings are characteristic of lichen planus?
What are the physical findings of mucous involvement in lichen planus?
What are the physical findings of genital involvement in lichen planus?
What are the physical findings of nail involvement in lichen planus?
What are the physical findings of scalp lesions in lichen planus?
How do the physical findings of lichen planus vary by subtype?
What are potential complications in lichen planus?
DDX
What are the differential diagnoses for Lichen Planus?
Workup
Which lab study findings are diagnostic of lichen planus?
What is the role of imaging studies in the workup of lichen planus?
What are the histopathologic features of lichen planus?
Treatment
Which specialist should be consulted in the treatment of lichen planus?
Medications
Which medications are used in the treatment of cutaneous lichen planus?
Which medications are used in the treatment of lichen planus of the oral mucosa?
Which medications are used in the treatment of widespread lichen planus?
Which medications in the drug class Antibiotics, Other are used in the treatment of Lichen Planus?
Which medications in the drug class Immunosuppressants are used in the treatment of Lichen Planus?
Which medications in the drug class Retinoid-like Agents are used in the treatment of Lichen Planus?
Which medications in the drug class Corticosteroids are used in the treatment of Lichen Planus?
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Lichen planus on the flexor part of the wrist.
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Close-up view of lichen planus.
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Lichen planus shows Wickham striae (white, fine, reticular scales).
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Lichen planus on the oral mucosa with ulceration in the center of the lesion appears with whitish papules and plaques in the periphery.
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Lichen planus lesion. Courtesy of Syed Wali Peeran, with no alterations, Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Lichen_planus-Skin_lesion.jpg).
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Intraoral lichen planus lesion. Courtesy of Syed Wali Peeran, with no alterations, Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Lichen_planus-intra_oral_lesion.jpg).