Melanonychiahttps://en.wikipedia.org/wiki/Melanonychia
Melanonychia yaiku pigmentasi ireng utawa coklat ing piring kuku sing normal, lan bisa ditemokake minangka temuan normal ing pirang‑pirang digit wong Afro‑Karibia.

Pita pigmen sing amba lan jero kanthi wates sing ora teratur, lan panyebaran pigmen menyang jaringan periungual, minangka tandha melanoma.

☆ AI Dermatology — Free Service
Ing asil Stiftung Warentest 2022 saka Jerman, kepuasan konsumen karo ModelDerm mung luwih murah tinimbang konsultasi telemedicine sing dibayar.
  • Ora umum yen sawetara garis diamati. Melanonychia biasane enteng, nanging yen ana akeh garis sing ora teratur ing level iki, biopsi bisa uga dipertimbangkan.
  • Garis Muehrcke (Muehrcke's lines)
  • Brown banding
References Melanonychia: Etiology, Diagnosis, and Treatment 32055501 
NIH
Akeh pasien nemokake melanonychia, sing nyebabake warna coklat‑ireng ing piring kuku. Kondisi iki asring nyebabake owah‑owahan warna kuku, kanthi panyebab saka entheng nganti serius, kayata melanoma. Melanonychia sing katon kaya pita longitudinal bisa disebabake dening macem‑macam 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 – Clues for a Correct Diagnosis 32064201 
NIH
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.