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lichenoid eruption

Monday 17 September 2018

lichenoid reaction (or lichenoid lesion )

WKP

Definition : A lichenoid eruption is a skin disease characterized by damage and infiltration between the epidermis and dermis (" lichenoid infiltration ").

The term lichenoid reaction (or lichenoid lesion) refers to a lesion of similar or identical histopathologic and clinical appearance to lichen planus (i.e., an area which resembles lichen planus , both to the naked eye and under a microscope).

Sometimes dental materials or certain medications can cause a lichenoid reaction.

They can also occur in association with graft versus host disease.

Examples include lichen planus, lichen sclerosus and lichen nitidus. It can also be associated with abrasion or drug use. It has been observed in conjunction with the use of proton pump inhibitors.

The term "lichenoid" derives from a resemblance to a lichen.