This week, in the American Journal of Pathology, two San Francisco doctors offer an unexpected reply: the clot forms as the result of a reaction between arterial blood and material from a diseased ...

A peritonsillar abscess is a painful, pus-filled collection of tissue that forms in the back of the throat near one of the tonsils. They require medical treatment. Share on Pinterest Peritonsillar ...

A skin abscess or boil is a bump on or below the skin’s surface. It may look like a pimple but larger and deeper under the skin. Abscesses usually contain pus or clear fluid and can appear anywhere on ...