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November 2007

Brown and Black Scaly Patches on the Lower Leg—Diagnosis

Author Affiliations
 

MICHAEL E.MINGMD, MSCECARRIE ANN R.CUSACKMDSENAIT W.DYSONMDJACQUELINE M.JUNKINS-HOPKINSMDVINCENTLIUMDKARLA S.ROSENMANMD

Arch Dermatol. 2007;143(11):1441-1446. doi:10.1001/archderm.143.11.1442-e

The histopathologic specimen demonstrated neovascularization with prominent small blood vessels in the papillary dermis and dermal fibrosis, consistent with a diagnosis of stasis dermatitis. Hemosiderin, demonstrated by Perls stain, was conspicuously present throughout the dermis, while increased melanin deposition in the basal layer was demonstrated by Fontana-Masson silver stain. As clinically suspected, hemosiderin deposition was considerably increased in tissue from the patient's left leg compared with the right.

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