A collection of purulent exudate that has accumulated in a cavity formed by the tissue.
Relating to or exhibiting chemical changes produced by radiant energy, especially the visible and ultraviolet parts of the spectrum; relating to exposure to the ultraviolet rays of sunlight.
A course of disease that ¡s either of short duration or one that is both short and relatively severe.
The formation and differentiation of blood vessels.
The decrease in size and function of a cell, tissue, organ, or whole body.
Describes a lesion that is at the center of an involved area; in the context of oral lesions, it indicates that the lesion is within bone.
The movement of white blood cells, as directed by biochemical mediators to an area of injury.
Course of disease persisting for a long time.
A nonspecific protein, ‘produced in the liver, that becomes elevated during episodes of acute inflammation or infection.
An abnormal sac or cavity lined by epithelium and surrounded by fibrous connective tissue.
The dissolution or destruction of a cell.
Excess plasma or exudate in the interstitial space that results in tissue swelling.
The passage of white blood cells through the walls of small blood vessels and into injured tissue.
The process of being covered with epithelium.
Redness of the skin or mucosa.
Fluid with a high protein content that leaves the microcirculation during an inflammatory response. An exudate consists of serum that contains white blood cells, fibrin, and other protein molecules.
An elevation of body temperature to greater than the normal level of 370 C (98.6° F).
The formation of fibrous tissue, as normally occurs in healing.
An abnormal passage that leads from an abscess to the body surface.
The initial connective tissue formed in healing.
A collection of macrophages usually surrounded by a rim of lymphocytes.
An excess of blood within blood vessels in a part of the body.
An enlargement of a tissue or organ resulting from an increase in the number of normal cells; the result of increased cell division.
An enlargement of a tissue or organ resulting from an increase in the size of its individual cells, but not in the number of cells.
A nonspecific response to injury that involves the microcirculation and its blood cells.
A temporary increase in the number of white blood cells circulating in blood.
A disease process that is confined to a limited location in the body; not general or systemic.
Abnormal enlargement of lymph nodes.
The second type of white blood cell to arrive at site of injury; it participates phagocytosis during inflammation and continues to be active in the immune response.
A process during inflammation in which white blood cells tend to move to the periphery of the blood vessel at the site of injury.
Small blood vessels, including arterioles, capillaries, and venules.
A fibroblast that has some of the characteristics of smooth muscle cells, such as the ability to contract.
The pathologic death of one or more cells, or a portion of tissue, or an organ that results from irreversible damage to cells.
The first white blood cell to arrive at a site of injury; the primary cell involved in acute inflammation; also called a polymorphonuclear Ieukocyte.
The process of becoming opaque.
The enhancement of phagocytosis by a process in which a pathogen is marked, with opsonins, for destruction by phagocytes.
The adherence of white blood cells to blood vessel walls during inflammation.
Located away from the center; in the context of oral lesions, peripheral indicates that the lesion is within the gingival tissue or alveolar mucosa.
The ingestion and digestion of particulate material by cells.
A secretion containing or forming pus.
Pertaining to the root of a tooth.
The process by which injured tissue is replaced with tissue identical to that present before the injury.
The restoration of damaged or diseased tissues by cellular change and growth.
A secretion having a watery consistency; relating to serum.
Pertaining to or affecting the body as a whole; a disease process pertaining to or affecting the body as a whole.
The fluid component of blood that normally passes through the endothelial cell walls of the microcirculation.
A disease process that results from injury that causes tissue damage.
The ring of lymphatic tissue formed by the two palatine tonsils, the pharyngeal tonsil, the lingual tonsil, and intervening lymphoid tissue.