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Lichen planus may be categorized as affecting mucosal or cutaneous surfaces.. Cutaneous forms are those affecting the skin, scalp, and nails. [10] [11] [12]Mucosal forms are those affecting the lining of the gastrointestinal tract (mouth, pharynx, esophagus, stomach, anus), larynx, and other mucosal surfaces including the genitals, peritoneum, ears, nose, bladder and conjunctiva of the eyes.
Lichen planus Irregular epidermal hyperplasia with a jagged “sawtooth” appearance, compact hyperkeratosis or orthokeratosis, foci of wedge-shaped hypergranulosis, basilar vacuolar degeneration, slight spongiosis in the spinous layer, and squamatization. The dermal papillae between the elongated rete ridges are frequently dome shaped.
Examples include lichen planus, lichen sclerosus and lichen nitidus. It can also be associated with abrasion or drug use. [2] It has been observed in conjunction with the use of proton pump inhibitors, and might be a sign and/or symptom of lupus such as subacute cutaneous lupus erythematous, according to the case reports and reviews. [3] [4] [5 ...
Lichen planus. What it looks like: Purplish lesions on the inner arms, legs, wrists, or ankles can signify lichen planus, a skin rash triggered by an overreaction of the immune system.
Bullous lichen planus (vesiculobullous lichen planus) Erosive lichen planus; Erythema dyschromicum perstans (ashy dermatosis, dermatosis cinecienta) Giant cell lichenoid dermatitis; Hepatitis-associated lichen planus; Hypertrophic lichen planus (lichen planus verrucosus) Idiopathic eruptive macular pigmentation; Inverse lichen planus
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Graham-Little syndrome or Graham-Little–Piccardi–Lassueur syndrome is a cutaneous condition characterized by lichen planus-like skin lesions. [ 1 ] : 648 It is named after Ernest Graham-Little .
Lichen nitidus is a chronic inflammatory disease of unknown cause [1] characterized by 1–2 mm, discrete and uniform, shiny, flat-topped, pale flesh-colored or reddish-brown papules [2] [3] that may appear as hypopigmented against dark skin.