PMC9598967_01
Slate-blue dermal hyperpigmented patches present in the proximal nail beds of all 10 fingernails.
umlp-13-4493-g001.jpg
PMC9598967_01_umlp-13-4493-g001.jpg
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Physical examination revealed asymptomatic slate-blue dermal hyperpigmented patches in the proximal nail beds of all 10 fingernails (Figure 1).