A condition characterized by brownish/blackish longitudinal streaks or bands. Very common in darkskinned
individuals, it reflects melanin deposition from a normal increase of melanocytes in the nail bed. Yet, it
also may indicate a much more ominous subungual melanoma. Hence, it presents a clinical challenge.
When in doubt, always biopsy the nail matrix and bed.
individuals, it reflects melanin deposition from a normal increase of melanocytes in the nail bed. Yet, it
also may indicate a much more ominous subungual melanoma. Hence, it presents a clinical challenge.
When in doubt, always biopsy the nail matrix and bed.