PMC4802533_01
Blue-black pigmented lesions on upper anterior and lower anteromedial aspects of right leg.
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A 71-year-old African-American woman presented with blue-black dermal pigmentation on her right anterior leg just below the knee (Fig 1).
Hypertrichosis overlying blue-black pigmented lesion on upper anterior aspect of right leg.
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Upon examination, the blue-black pigmented areas were nonerythematous but had hypertrichosis (Fig 2).
Low-power view. Interstitial and adnexal accumulation of coarse black granular pigment particles with minimal inflammatory infiltrate.
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A remarkable interstitial and adnexal accumulation of coarse black granular pigment particles with minimal inflammatory infiltrate was noted (Fig 3).
High-power view. Interstitial and adnexal accumulation of coarse black granular pigment particles with minimal inflammatory infiltrate.
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There was no vasculitis (Fig 4).