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Pus is an exudate, typically white-yellow, yellow, or yellow-brown, formed at the site of inflammation during infections, regardless of cause. [ 1 ] [ 2 ] An accumulation of pus in an enclosed tissue space is known as an abscess , whereas a visible collection of pus within or beneath the epidermis is known as a pustule , pimple or spot.
Malignant (or cancerous) pleural effusion is effusion where cancer cells are present. [11] It is usually classified as exudate. Types of exudates: serous, serosanguineous, sanguineous, hemorrhaging and purulent drainage. Serous: Clear straw colored liquid that drains from the wound. This is a normal part of the healing process.
[3] [4] Cancer can be difficult to diagnose because its signs and symptoms are often nonspecific, meaning they may be general phenomena that do not point directly to a specific disease process. [5] In medicine, a sign is an objective piece of data that can be measured or observed, as in a high body temperature (fever), a rash, or a bruise. [6]
This is a process in which lysosomes turn tissues into pus as a result of lysosomal release of digestive enzymes. Loss of tissue architecture means that the tissue can be liquefied. This process is not associated with bacterial action or infection. Ultimately, in a living patient most necrotic cells and their contents disappear.
Inflammation is a generic response, and therefore is considered a mechanism of innate immunity, whereas adaptive immunity is specific to each pathogen. [2] Inflammation is a protective response involving immune cells, blood vessels, and molecular mediators. The function of inflammation is to eliminate the initial cause of cell injury, clear out ...
An abscess is a collection of pus that has built up within the tissue of the body, usually caused by bacterial infection. [6] [7] Signs and symptoms of abscesses include redness, pain, warmth, and swelling. [1] The swelling may feel fluid-filled when pressed. [1] The area of redness often extends beyond the swelling. [8]
“The most common symptom people have is a neck mass or a lump on the side of the neck,” he says. Other signs can include: A long-lasting sore in their mouth. Trouble swallowing. Changes in ...
It is considered a radiologic sign. Consolidation occurs through accumulation of inflammatory cellular exudate in the alveoli and adjoining ducts. The liquid can be pulmonary edema , inflammatory exudate , pus , inhaled water, or blood (from bronchial tree or hemorrhage from a pulmonary artery ).