Lichen planushttps://en.wikipedia.org/wiki/Lichen_planus
Lichen planus minangka penyakit inflamasi kronis sing dimediasi dening sistem imun lan mengaruhi kulit, kuku, rambut, lan membran mukus. Penyakit iki ditandhai kanthi papula rata lan plak poligonal kanthi permukaan retikuler lan skala putih halus (Wickham's striae). Biasane mengaruhi punggung tangan, pergelangan tangan lan lengan, batang, kaki bagian depan lan mukosa lisan. Penyebabé ora dingerteni, nanging dianggep minangka asil saka proses autoimun kanthi pemicu awal sing durung dikenal.

Kanggo konfirmasi diagnosis lichen planus kulit, biopsi kulit bisa ditindakake. Immunofluoresensi langsung (DIF) bisa migunani ing pasien kanthi lesi bulosa kanggo mbedakake kondisi saka penyakit vesikulobulosa autoimun.

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  • Lesi sing amba ing loro kulit kering ora khas. Ing kasus iki, penyakit alergi kronis liyane (lichen simplex chronicus) biasane luwih dicurigani.
  • Garis putih non‑erosif Lichen planus ing mukosa bukal (pipi).
  • Iki ditandhai dening munculé sawetara papula keras sing gatel. Iku katon khas Lichen planus.
  • Leukoplakia — tambalan putih ing rongga lisan.
  • 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) minangka kondisi inflamasi kronis sing umume mengaruhi wong diwasa ing umur pertengahan. Bisa muncul ing kulit utawa membran mukosa kayata tutuk, tempek, esophagus, kothak swara, lan lapisan mripat. LP ana ing macem‑macem bentuk gumantung saka penampilan ruam lan lokasi. Panaliten nuduhake manawa jinis LP tartamtu, kayata sing mengaruhi esophagus utawa mripat, asring ora cukup didiagnosa. Sawetara bentuk LP, kayata jinis hipertrofik lan erosif ing tutuk, bisa dadi beban lan tahan suwe. Faktor liyane, kayata obat‑obatan utawa kontak karo zat tartamtu, uga bisa nyebabake ruam sing padha.
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 yaiku kondisi kulit sing ditandhani kanthi bintik-bintik keunguan, permukaan rata, lan lesi sing bisa nyebabake gatel. Lesi kulit iki bisa ngganggu, utamane yen mengaruhi kulit kelamin utawa area sensitif liyane. Ing kasus sing abot, oral lichen planus uga bisa nambah risiko berkembangake kanker kulit. Kondisi iki uga bisa mengaruhi kulit kepala lan kuku. Sanajan panyebab umume ora dingerteni, sawetara kasus bisa dipicu dening obat-obatan tartamtu utawa infeksi hepatitis C. Perawatan biasane kalebu krim kuat kanggo lesi lokal lan steroid oral kanggo kasus sing luwih nyebar.
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 yaiku kondisi ing ngendi sistem kekebalan nyebabake inflamasi, sing nimbulake lesi khas ing kulit lan membran mukosa. Kahanan iki mengaruhi kira‑kira 5 % wong diwasa, luwih asring wanita, lan biasane muncul ing umur pertengahan. Keterlibatan lisan katon ing nganti 77 % kasus, biasane mengaruhi pipi bagian dalam. Nalika sawetara wong ora ngrasakake gejala apa wae, wong liya bisa ngalami rasa lara lan gangguan nalika mangan panganan tartamtu (contone, asam, pedhes) utawa nggunakake pasta gigi.
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.