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Lichen planus - Anogenital in
See also in: Overview,Nail and Distal Digit
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Lichen planus - Anogenital in

See also in: Overview,Nail and Distal Digit
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Contributors: Jeffrey M. Cohen MD, Kudakwashe K. Maloney MD, MPhil, Belinda Tan MD, PhD, Susan Burgin MD
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Synopsis

Mucocutaneous lichen planus (LP) is a relatively common condition with varying clinical presentations. It can present in an individual with cutaneous LP or in isolation. Mucocutaneous LP may be erosive and ulcerative with significant scarring, pain, discomfort, and dysfunction, resembling lichen sclerosus, or present with thickened / hypertrophic lesions.

See oral lichen planus for oral mucosal presentation and lichen planopilaris for scalp presentation.

Certain medications may cause a lichenoid drug eruption, which is indistinguishable from typical LP.

Codes

ICD10CM:
L43.9 – Lichen planus, unspecified

SNOMEDCT:
4776004 – Lichen planus

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Best Tests

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Management Pearls

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Therapy

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Reviewed: 05/07/2019
Last Updated: 05/13/2019
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Lichen planus - Anogenital in
See also in: Overview,Nail and Distal Digit
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Lichen planus (Overview) : Forearm, Koebner phenomenon, Polygonal configuration, Purple color, Wickham striae, Widespread, Wrist, Anterior lower leg, Pruritus
Clinical image of Lichen planus
Flat-topped violaceous, polygonal papules, some annular, with fine white scale at the wrist.
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