Melanonychia - Melanonichiahttps://en.wikipedia.org/wiki/Melanonychia
Melanonichia (Melanonychia) is 'n swart of bruin pigmentasie van die normale spykerplaat, en kan teenwoordig wees as 'n normale bevinding op baie syfers in Afro-Karibiese mense.

'n Wye, diep gepigmenteerde band met onreëlmatige lyne en gepigmenteerde verlenging op die periunguale weefsels is 'n teken vir melanoom.

☆ In die 2022 Stiftung Warentest-resultate van Duitsland was verbruikerstevredenheid met ModelDerm net effens laer as met betaalde telemedisyne-konsultasies.
  • Ongewone veelvuldige lyne word waargeneem. Melanonichia (Melanonychia) is meestal benigne, maar as daar baie onreëlmatige lyne op hierdie vlak is, kan 'n biopsie oorweeg word.
  • Muehrcke's lines
  • Brown banding
References Melanonychia: Etiology, Diagnosis, and Treatment 32055501 
NIH
Baie pasiënte vind melanonichia kommerwekkend, aangesien dit bruin-swart verkleuring van die spykerplaat veroorsaak. Dit is 'n gereelde rede vir naelverkleuring, met oorsake wat wissel van goedaardig tot potensieel ernstig, soos melanome. Longitudinale bandagtige melanonichia kan voortspruit uit verskeie plaaslike of sistemiese faktore.
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.