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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.
It can be a manifestation of lichen planus, psoriasis, alopecia areata, immunoglobulin A deficiency, atopic dermatitis, and ichthyosis vulgaris. [7] "The longitudinal striations can occur as a normal part of the aging process", [2] and not until the nails start to thin and get a sandpaper look is the condition called trachonychia. The nails are ...
To avoid misdiagnosis as nail psoriasis, lichen planus, contact dermatitis, nail bed tumors such as melanoma, trauma, or yellow nail syndrome, laboratory confirmation may be necessary. [2] Other conditions that may appear similar to onychomycosis include: psoriasis, normal aging, green nail syndrome, yellow nail syndrome, and chronic paronychia ...
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.
Lichen planus Pterygium unguis (or dorsal pterygium [ 1 ] : 660 ) forms as a result of scarring between the proximal nailfold and matrix, with the classic example being lichen planus , though it has been reported to occur as a result of sarcoidosis and Hansen's disease .
Lichenoid eruptions are dermatoses related to the unique, common inflammatory disorder lichen planus, which affects the skin, mucous membranes, nails, and hair. [ 74 ] [ 75 ] [ 76 ] Annular lichen planus Lichen planus actinicus
Melanonychia is a black or brown pigmentation of a nail, and may be present as a normal finding on many digits in Afro-Caribbeans, as a result of trauma, systemic disease, or medications, or as a postinflammatory event from such localized events as lichen planus or fixed drug eruption. [1]: 790 [2]: 665
Anonychia is the failure to form fingernails or toenails. [1] It is an anomaly which may be the result of a congenital ectodermal defect, ichthyosis, severe infection, severe allergic contact dermatitis, self-inflicted trauma, Raynaud phenomenon, lichen planus, epidermolysis bullosa, or severe exfoliative diseases. [2]