Melanonychia
☆ Yng nghanlyniadau Stiftung Warentest 2022 o’r Almaen, roedd boddhad defnyddwyr â ModelDerm ond ychydig yn is nag ymgynghoriadau telefeddygaeth taledig.
Gwelir llinellau lluosog anarferol. Mae Melanonychia yn anfalaen ar y cyfan, ond os oes llawer o linellau afreolaidd ar y lefel hon, efallai yr ystyrir biopsi.
Muehrcke's lines
References
Mae llawer o gleifion yn gweld melanonychia yn peri pryder, gan ei fod yn achosi afliwiad brown-du ar y plât ewinedd. Mae'n rheswm aml dros afliwio ewinedd, gydag achosion yn amrywio o anfalaen i ddifrifol bosibl, fel melanomas. Gall melanonychia tebyg i fand hydredol ddeillio o ffactorau lleol neu systemig amrywiol.
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 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.
Mae band llydan, dwfn gyda llinellau afreolaidd ac estyniad pigmentog i'r meinweoedd periungual yn arwydd o felanoma.