About The Medical Condition Lichen Planus
Find the definition of the medical term Lichen Planus. Lichen Planus defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Lichen Planus
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What's The Definition Of The Medical Condition Lichen Planus?
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.
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