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2009 MeSH

MeSH Descriptor Data

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Lichen Planus
MeSH HeadingLichen Planus
Tree NumberC17.800.859.475.560
Annotationa skin dis; sometimes called simply "lichen": check text & its bibliog; lichen planus atrophicus: index here & do not confuse with LICHEN SCLEROSUS ET ATROPHICUS
Scope NoteAn 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.
Entry TermLichen Ruber Planus
Entry TermLichen Rubra Planus
Allowable QualifiersBL CF CI CL CN CO DH DI DT EC EH EM EN EP ET GE HI IM ME MI MO NU PA PC PP PS PX RA RH RI RT SU TH UR US VE VI
Date of Entry19990101
Unique IDD008010


MeSH Tree Structures

 
Skin and Connective Tissue Diseases [C17]
   Skin Diseases [C17.800]
      Skin Diseases, Papulosquamous [C17.800.859]
         Lichenoid Eruptions [C17.800.859.475]
Lichen Nitidus [C17.800.859.475.545]
Lichen Planus [C17.800.859.475.560]
Lichen Planus, Oral [C17.800.859.475.560.397]
Lichen Sclerosus et Atrophicus [C17.800.859.475.605]
Pityriasis Lichenoides [C17.800.859.475.650]

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