Melanonychiahttps://en.wikipedia.org/wiki/Melanonychia
Melanonychia jẹ awọ dudu tabi brown ti awo eekanna deede, ati pe o le wa bi wiwa deede lori ọpọlọpọ awọn nọmba ni awọn eniyan Afro‑Caribbeans.

Ẹgbẹ́ aláwọ̀ jinlẹ̀ tó gbooro pẹ̀lú àwọn laini aláìṣeédéé àti ìtẹ̀sí aláwọ̀ sí àgbáyé periungual jẹ́ àmì fún melanoma.

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  • Awọn ila alailẹgbẹ pupọ ni a ri. Melanonychia jẹ́ aláìlera, ṣùgbọ́n tí ó bá wà púpọ̀ àwọn ila aláìtọ́ ní ipele yìí, a lè gbero biopsy kan.
  • Awọn ila Muehrcke (Muehrcke's lines)
  • Brown banding
References Melanonychia: Etiology, Diagnosis, and Treatment 32055501 
NIH
Melanonychia jẹ ayipada awọ dudu tàbí brown ti àlàfo awo deede, ó sì le jẹ ohun tí ó wà ní ààyè lórí ọ̀pọ̀ àpá ní àwọn ènìyàn Afro‑Caribbean. Ó lè wá láti ìfarapa, àrùn eto, tàbí ohun èlò, tàbí gẹ́gẹ́ bí ìṣẹ̀lẹ̀ àìlera lẹ́yìn bí lichen planus (lichen planus) tàbí fixed drug eruption (fixed drug eruption). Ẹgbẹ́ gigun-gẹ́gẹ́ bí melanonychia le jẹ́yọ láti oríṣìíríṣìí àgbègbè tàbí àwọn ifosiwewe eto.
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.