Lichen Planus Overview

What type of hypersensitivity reaction is associated with Lichen Planus?

What is a characteristic feature of the skin lesions in Lichen Planus?

Which population is most commonly affected by Lichen Planus?

Where are oral lesions from Lichen Planus most commonly found?

Which form of Lichen Planus is characterized by painful gingiva and may present with erosions or ulcers?

Lichen Planus

Chronic inflammatory disease affecting the skin and oral mucosa
Estimated to affect ~2% of the population
More common in middle-aged adults, with women being affected more often than men.
Cause is unknown, but it is associated with stress.
Considered a Type IV hypersensitivity reaction.

Skin Lesions

Characterized by purple, itchy, polygonal papules.
Overlying Wickham striae, fine white lines that sit on the papules.
Can occur anywhere on the body, but commonly seen on the lumbar region, flexor surfaces of wrists and elbows, and anterior surface of ankles.

Oral Lesions

Most common on the buccal mucosa.
May also involve the tongue, lips, floor of mouth, and gingiva.
Lesions are often bilaterally symmetrical.

Forms

Reticular: Most common form, asymptomatic, characterized by Wickham striae with white plaque-like areas.
Erosive: Presents with erosions, bullae, or ulcers.
Desquamative gingivitis: Erythematous, painful gingiva, this clinical term may also indicate pemphigus or pemphigoid.

Explore the key features of Lichen Planus, a chronic inflammatory condition that affects the skin and oral mucosa. This quiz covers its symptoms, common forms, and demographic prevalence. Test your understanding of this complex disease and its manifestations.