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Annular lichen planus
A rare variant of cutaneous lichen planus characterized by the development of annular lesions.
ORPHA:254424Classification level: Disorder
- Annular LP
- Prevalence: Unknown
- Inheritance: -
- Age of onset: All ages
- ICD-10: L43.8
- OMIM: -
- UMLS: C0406363
- MeSH: -
- GARD: 12674
- MedDRA: -
The exact prevalence is unknown.
Annular lesions occur in 10% of all cases of lichen planus, they usually occur in association with more classic lesions. Annular LP is characterized by the development of annular violaceous or hyperpigmented plaques, with no central atrophy and slightly raised, non-scaly borders. Genital and oral lesions have been reported, along with lesions affecting the axillae, trunk, and extremities.
Etiology is unknown.
A summary on this disease is available in Deutsch (2011) Español (2011) Français (2011) Italiano (2011) Nederlands (2011) Português (2011) Greek (2011, pdf)
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