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  1. Dermatology: Purpura

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    Description: Purpura - red patches that cannot be blanched, e.g. vasculitis Purpura is a hemorrhagic disease characterized by extravasation of blood into the tissues, under the skin, and through the mucous membranes, and producing spontaneous bruises, ecchymoses, and petechiae (small hemorrhagic spots) on the skin. (See plate in Dermatology Atlas.) When accompanied by a decrease in the circulating platelets, it is called thrombocytopenic purpura; when there is no decrease in the platelet count, it is called nonthrombocytopenic purpura. adj., adj purpu´ric.
    Keywords: ecchymoses, petechiae, hemmorage, skin