Lichen planushttps://en.wikipedia.org/wiki/Lichen_planus
Lichen planus est morbus inflammatorius cronicus et immunologicus, qui cutem, ungues, capillos, membranas mucosas afficit. Notatur per papulas polygonales, planas, cumbas, et per lineas supertextas, reticulatas, squamas subtilis albas (Wickham's striae). Vulgo afficit dorsas manus, poplites, brachia flexa, truncum, crura anteriora et mucosam oralis. Causa incognita est, sed putatur ex processu autoimmuni cum incognito factoribus initiis.

Ad diagnosis lichenis planus cutanei confirmandam, potest fieri per biopsiam cutis. Directa immunofluorescens (DIF) utilis esse potest in aegrotibus cum laesionibus bullosis ad differentiam ab morbo vesiculobuloso autoimmundo.

☆ In anno 2022 Stiftung Warentest ex Germania provenit, satisfactio consumptoria cum ModelDerm paulo minus fuit quam cum consultationibus telemedicinis solutis.
  • Latae laesiones in utroque tibiarum atypicae sunt. In hoc casu, alii morbi longi allergici (lichen simplex chronicus) magis suspecti sunt.
  • Striationes albae non-erosivae Lichen planus in mucosa buccali (gena).
  • Indolens est plurium papularum pruritum durarum. Species typica est Lichen planus.
  • Leukoplakia in cavitate alba commissura est.
  • Atrophic lichen planus
References Cutaneous and mucosal lichen planus: a comprehensive review of clinical subtypes, risk factors, diagnosis, and prognosis 24672362 
NIH
Lichen planus (LP) diuturna conditio inflammationis est, quae plerumque in mediis annis adultis afficit. In cute vel membranis mucosis, ut oris, vaginae, oesophagi, arcae vocis, et oculi, potest apparere. LP varias formas assumit, secundum modum quo epinyctides se praebent et locum apparitionis. Studia suadent quaedam genera LP, quae guttam vel oculos afficiunt, nondum satis cognita sunt. Quaedam formae LP, ut in ore hypertrophicae et erosivae, possunt esse valde graves et diuturnae. Alii factores, ut medicamenta vel contactus cum quibusdam substantiis, possunt agere ut trigger similes.
Lichen planus (LP) is a chronic inflammatory disorder that most often affects middle-aged adults. LP can involve the skin or mucous membranes including the oral, vulvovaginal, esophageal, laryngeal, and conjunctival mucosa. It has different variants based on the morphology of the lesions and the site of involvement. The literature suggests that certain presentations of the disease such as esophageal or ophthalmological involvement are underdiagnosed. The burden of the disease is higher in some variants including hypertrophic LP and erosive oral LP, which may have a more chronic pattern. LP can significantly affect the quality of life of patients as well. Drugs or contact allergens can cause lichenoid reactions as the main differential diagnosis of LP.
 Lichen Planus 10865927
Lichen planus est conditio pellis purpurea, plana, quae papulas laesas format et intensum pruritum provocare potest. Haec laesiones cutis dolere possunt, praesertim ubi oris vel genitalium regionum graviter afficiunt. In casibus gravibus, lichen planus oralis periculum cancri cutis augere potest. Potest etiam cutem et ungues afficere. Causa plerisque ignota est, sed quaedam medicamenta vel infectio hepatitis C eam provocare possunt. Curatio typice includit corticosteroides topicos pro casibus localibus et corticosteroides orales pro casibus gravibus.
Lichen planus is a skin condition marked by purplish, flat-topped bumps and patches that can cause intense itching. These skin lesions can be distressing, especially when they affect the mouth or genitals severely. In severe cases, oral lichen planus may even increase the risk of developing a type of skin cancer. It can also affect the scalp and nails. While the cause of most cases is unknown, some may be triggered by certain medications or hepatitis C infection. Treatment typically involves strong creams for localized cases and oral steroids for more widespread ones.
 Oral lichen planus 32753462 
NIH
Lichen planus conditio est ubi systema immunitatis inflammationem creat, cum notis distinctis in cute et membranis mucosis. Afectat circiter 5 % adultorum, plerumque feminas, et plerumque incipit circa mediam aetatem. Involutio oralis apparet in usque ad 77 % casuum, maxime quae maxillam internam afficiunt. Dum aliqui symptomata non sentiunt, alii dolorem experiuntur et molestiam habent cum quibusdam cibis (exempli gratia, acida, acuta) vel dentifricio.
Lichen planus is an immune-mediated inflammatory condition leading to characteristic lesions on skin and mucous membranes. It presents in up to 5% of the general adult population with a female predilection (2:1); the onset is most commonly in middle age. Up to 77% of patients with lichen planus have oral disease, with buccal mucosa the most common subsite. The oral lesions may be asymptomatic, although a subset of patients have pain and difficulty tolerating certain foods (e.g., acidic, spicy) and toothpaste.