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Lichen Planus

definition

An inflammatory, pruritic disease of the skin and mucous membranes, which can be either generalized or localized. It is characterized by distinctive purplish, flat-topped papules having a predilection for the trunk and flexor surfaces. The lesions may be discrete or coalesce to form plaques. Histologically, there is a "saw-tooth" pattern of epidermal hyperplasia and vacuolar alteration of the basal layer of the epidermis along with an intense upper dermal inflammatory infiltrate composed predominantly of T-cells. Etiology is unknown.

synonyms

Lichen Planus, Lichen Ruber Planus

UMLS

Lichen Planus, Lichen planus NOS, Lichen Ruber Planus, Lichen Rubra Planus, Lichen, planus, Lichen, ruber, planus, LP - Lichen planus, Ruber planus

Images

13 images found for this diagnose
localisation: lower arms, diagnosis: Lichen Planus localisation: wrists, diagnosis: Lichen Planus localisation: inguinal region, diagnosis: Lichen Planus localisation: inguinal region, diagnosis: Lichen Planus localisation: tibial, diagnosis: Lichen Planus localisation: trunk, diagnosis: Lichen Planus localisation: trunk, lower arms, diagnosis: Lichen Planus localisation: lower arms, diagnosis: Lichen Planus diagnosis: Lichen Planus diagnosis: Lichen Planus diagnosis: Lichen Planus diagnosis: Lichen Planus diagnosis: Lichen Planus