Term: Skin cancer of the nail matrix
Definition (plain English):
Skin cancer can rarely begin in the nail matrix (the growth area under the skin at the base of the nail).
Examples:
- Subungual melanoma (most serious form)
- Squamous cell carcinoma of the nail unit
- Basal cell carcinoma (very rare in nails)
How it relates to nails:
Skin cancers of the matrix may cause dark streaks (melanonychia), irregular pigmentation, nail splitting, or destruction of the nail plate.
Confusable with:
Ethnic pigmentation, trauma, fungal infection, or drug-induced pigmentation.
Disclaimer:
⚠️ This information is for educational purposes only. It is not a diagnosis. Always seek medical advice if you are concerned.