PURPURA

Purpura

Purpura is the appearance of red or purple discolorations on the skin that do not blanch on applying pressure. They are caused by bleeding underneath the skin usually secondary to vasculitis or dietary deficiency of vitamin C . Purpura measure 0.3–1 cm, whereas petechiae measure less than 3 mm, and ecchymoses greater than 1 cm.

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purpura

Noun

  1. The appearance of red or purple discolorations on the skin that do not blanch when pressure is applied, caused by subdermal bleeding.


The above text is a snippet from Wiktionary: purpura
and as such is available under the Creative Commons Attribution/Share-Alike License.

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