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Pigmented nail with atypical melanocytic hyperplasia
Author(s) -
HYUN CHO KWANG,
SOON KIM BANG,
HO CHANG SEUNG,
LEE YOO SHIN,
JOONG KIM KWANG
Publication year - 1991
Publication title -
clinical and experimental dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 78
eISSN - 1365-2230
pISSN - 0307-6938
DOI - 10.1111/j.1365-2230.1991.tb01234.x
Subject(s) - dermatology , nail (fastener) , medicine , nail disease , melanocytic nevus , nevus , melanoma , paronychia , cancer research , materials science , metallurgy
Summary We report two cases showing black discoloration of the thumb nail which were histologically found to be acral ientiginous melanoma (ALM) in situ. A pigmented subungual lesion is more frequently malignant than benign and it is generally believed that diagnosis of subungual melanoma during the radial‐growth phase is very difficult. Our cases are particularly interesting because atypical melanocytic hyperplasia was confined to the epidermis despite the lesion being present for a long time.