What is a dry crust of serum, blood, and/or pus that results from a burn, trauma, or infection?

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Quizplus · Accepted Answer

Eschar is a dry crust of serum, blood, and/or pus that forms as a result of tissue death from a burn, traumatic injury, or infection. Callus is a thickened area of skin that forms in response to repeated friction or pressure. Comedo is a type of acne lesion formed by a clogged hair follicle. Verruca is a wart caused by a viral infection.

What Is a Dry Crust of Serum, Blood, And/or Pus