Lichen Sclerosus et Atrophicus with Cutaneous Distribution Simulating Lichen Planus

Area of Science:

• Dermatology
• Autoimmune Diseases
• Rare Skin Conditions

Background:

• Lichen sclerosus et atrophicus (LS) is a chronic inflammatory skin condition of unknown cause.
• LS commonly affects the anogenital region, with extragenital involvement being rare (2.5% of cases).
• Potential links to hereditary, endocrine, and autoimmune factors are recognized, alongside possible associations with lichen planus (LP) and morphea.

Observation:

• A case study of a 31-year-old woman with LS lesions on the neck, upper back, wrist, and feet is presented.
• This presentation is unusual due to the widespread extragenital distribution of LS.
• The patient's lesions exhibited a clinical resemblance to lichen planus (LP).

Findings:

• The case demonstrates a rare extragenital manifestation of lichen sclerosus et atrophicus.
• The clinical presentation shared similarities with lichen planus, prompting further investigation into their relationship.
• This highlights the diagnostic challenges and varied presentations of LS.

Implications:

• This case expands the understanding of lichen sclerosus et atrophicus's clinical spectrum.
• It underscores the importance of considering LS in patients with atypical skin lesions, even outside the typical genital areas.
• Further research may clarify the etiological links between LS, LP, and other autoimmune skin disorders.