Canadian Medical Guide > Diseases > Bacterial Infections and Mycoses > Infection > Suppuration > Abscess Terms and Definitions

Abscess

Medical Definition:	Accumulation of purulent material in tissues, organs, or circumscribed spaces, usually associated with signs of infection.
Guide Notes:	IM; coord IM with site (organ/dis term) (IM) + precoord organism/infect term (IM); if unspecified bacterial abscess do not coord with BACTERIAL INFECTIONS (since most abscesses are bact) but coord with specific bact infect term if given (as ABSCESS + STAP

Abscess Categories.

	Abdominal Abscess - An abscess located in the abdominal cavity, i.e., the cavity between the diaphragm above and the pelvis below. (From Dorland, 27th ed)
	Lung Abscess - A complication of a localized area of pneumonia or when a neoplasm becomes necrotic and contains purulent material that cannot drain easily from the area because of partial or complete bronchial obstruction. (Harrison's Principles of Internal Medicine, 12th ed, p1068)
	Periapical Abscess - Acute or chronic inflammation of tissues surrounding the apical portion of a tooth, associated with the collection of pus, resulting from infection following pulp infection through a carious lesion or as a result of an injury causing pulp necrosis. (Dorland, 27th ed)
	Periodontal Abscess - Localized circumscribed purulent area of inflammation in the periodontal tissue. It is a derivative of marginal periodontitis and commonly associated with suprabony and infrabony pockets and interradicular involvements, in contrast to periapical abscess which is attributable to pulp necrosis.
	Peritonsillar Abscess - An abscess in the peritonsillar tissue extending into the tonsil capsule, resulting from suppuration of the tonsil. (Dorland, 27th ed)
	Psoas Abscess - Abscess of the PSOAS MUSCLES resulting usually from disease of the lumbar vertebrae, with the pus descending into the muscle sheath. The infection is most commonly tuberculous or staphylococcal.
	Retropharyngeal Abscess - A soft tissue infection of the throat with entry usually by the pharynx but sometimes as an extension of a lateral neck infection resulting from a neck injury. The major risk is upper airway obstruction caused by pharyngeal swelling. (Daniel R. Masys, from a written communication)

Abscess Medical Definitions and Terms

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