tar melanosis

tar melanosis
a dermatosis representing photosensitivity or phototoxicity induced by exposure to tar or other hydrocarbons, usually occupationally, most often involving the face or back of the hands, and characterized by pruritus associated with the development of reticular pigmentation, telangiectases, and small, dark, lichenoid, follicular papules. Called also melanodermatitis toxica lichenoides.

Medical dictionary. 2011.

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