Melanonychia minangka pigmentasi ireng utawa coklat saka piring kuku normal, lan bisa ditemokake minangka temuan normal ing pirang-pirang digit ing wong Afro-Karibia.
Pita sing amba lan jero pigmen kanthi garis sing ora teratur lan ekstensi pigmen ing jaringan periungual minangka tandha kanggo melanoma.
Melanonychia is a black or brown pigmentation of the normal nail plate, 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.
Mboten umum sawetara baris diamati. Melanonychia biasane entheng, nanging yen ana akeh garis sing ora teratur ing level iki, biopsi bisa uga dianggep.
Akeh pasien nemokake melanonychia, amarga nyebabake warna coklat-ireng ing piring kuku. Iki minangka alasan sing asring nyebabake owah-owahan warna kuku, kanthi panyaran saka enthusi nganti serius, kayata melanoma. Melanonychia kaya pita longitudinal bisa disebabake saka macem-macem faktor lokal utawa sistemik. Melanonychia is a very worrisome entity for most patients. It is characterized by brownish black discoloration of nail plate and is a common cause of nail plate pigmentation. The aetiology of melanonychia ranges from more common benign causes to less common invasive and in situ melanomas. Melanonychia especially in a longitudinal band form can be due to both local and systemic causes.
Melanonychia represents a brown to black discoloration of the nail plate that may be induced by benign or malignant causes. Two main mechanisms are involved in the appearance of melanonychias, i.e., melanocytic activation and melanocytic hyperplasia.
Muehrcke's lines
Pita sing amba lan jero pigmen kanthi garis sing ora teratur lan ekstensi pigmen ing jaringan periungual minangka tandha kanggo melanoma.