abscess

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Related to Perianal abscess: perirectal abscess, perianal fistula

abscess,

localized inflamation associated with tissue necrosis. Abscesses are characterized by inflamation, which is due to the accumulation of pus in the local tissues, and often painful swelling. They occur in the skin, at the root of a tooth, in the middle ear, on the eyelid (see stysty,
in medicine, acute localized infection of one or more of the glands of the eyelid, with pain, swelling, and redness of the lid margin, usually caused by a staphylococcus infection. An external sty usually releases its pus and disappears in a day or so.
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), in the mammary glands, in the recto-anal area, and elsewhere in the body. Abscesses may develop in lung tissue, in the lymph nodes, and in bone. A sinus abscess may result in a fistulafistula
, abnormal, usually ulcerous channellike formation between two internal organs or between an internal organ and the skin. It may follow a surgical procedure with improper healing, or it may be caused by injury, abscess, or infection with penetration deep enough to reach
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, and abscess of the appendix in appendicitis. Unless an abscess discharges spontaneously, surgical incision and drainage is required. See boilboil
or furuncle
, tender, painful inflammatory nodule in the skin, which becomes pustular but with a hard center (see abscess). It may be caused by any of various microbes, the most usual being Staphylococcus aureus.
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; carbunclecarbuncle,
acute inflammatory nodule of the skin caused by bacterial invasion into the hair follicles or sebaceous gland ducts. It is actually a boil, but one that has more than one focus of infection, i.e., involves several follicles or ducts.
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.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Abscess

 

a localized purulent inflammation of tissues, involving their dissolution and the formation of a pus-containing cavity.

Abscesses may develop in the subcutaneous cellular tissue, in muscles, bones, and so forth, as well as in organs (such as the liver, lungs, spleen, and brain) or between them (interintestinal abscesses, subphrenic abscesses, and so on). Abscesses may appear either independently or as a complication in other diseases—for instance, pneumonia, trauma, etc. They develop as a result of the penetration of pyogenic microbes into the organism through lesions of the skin or the mucous membranes or as a result of importation of pathogenic agents from other purulent foci through the blood and lymph vessels. The microbes that have entered the tissues cause inflammation and subsequent necrosis of a section of tissue or organ. The abscess is surrounded by a zone of inflammation. The organism’s defense reaction is manifested in the formation of a capsule separating the abscess from healthy tissue. The volume of pus in the cavity of an abscess may reach several liters.

The manifestations of abscesses depend on their location, depth, and stage of development. Abscesses located close to the skin or to a mucous membrane cause their reddening, an increase in local and overall temperature, swelling, and fluctuation—a sensation of impulse transmission through a liquid from one wall to the other. When an abscess is deep, the function of the organ in which it is embedded is disturbed, body temperature rises, and pain sets in. The number of leukocytes in the blood and the erythrocyte sedimentation rate (ESR) increase. If the capsule becomes thin, the abscess will open up by itself through the skin or into the bronchial or intestinal lumen, etc. Serious complications develop when abscesses break open into the pleural or abdominal cavity. Abscesses are treated by surgery.

REFERENCES

Rufanov, I. G. Obshchaia khirurgiia, 6th ed. Moscow, 1957. Page 311.
Davydovskii, I. V. Obshchaia patologiia cheloveka. Moscow, 1961.

A. B. GALITSKII

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

abscess

[′ab·ses]
(medicine)
A localized collection of pus surrounded by inflamed tissue.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

abscess

a localized collection of pus formed as the product of inflammation and usually caused by bacteria
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Her symptoms were ultimately the result of a perianal abscess which was treated operatively.
In this case, perianal abscess and recurrent pneumonia during infanthood points towards a primary immune deficiency.
Hyman et al., "Practice parameters for the treatment of perianal abscess and fistula-in-ano (revised)," Diseases of the Colon and Rectum, vol.
Pus swabs in incision and drainage of perianal abscesses: what is the point?
The event started with the 4-year-old boy of family A, who had 5 episodes of skin infections, including 2 episodes of perianal abscesses that required drainage and hospitalization.
Practice parameters for the management of perianal abscess and fistula-in-ano," Diseases of the Colon and Rectum, vol.
He was admitted with urinary retention and underwent surgery to drain a perianal abscess but died just over a fortnight later on November 7 after the wound became seriously infected.
"The mechanism seems to be one of skin-to-skin contact, and having very vigorous perianal sex that creates a breach of the skin barrier leading to perianal abscess," he said.
28 cases had a primary fistula with five had previously undergone perianal abscess drainage.
KEY WORDS: Fournier's gangrene, Perianal abscess, Diagnosis; Treatment.
More than 85% of the patients have an initiating etiology (Boil 32%, urethral stricture 14%, trivial trauma 20%, perianal abscess 18% and indwelling catheter 4%) that lead to the development of Fournier's gangrene.
Past history of perianal abscess obtained from 84% of cases from these facts we note that discharging wound and pain, and past history of peri anal abscess are the commonest mode of presentation in the majority of patients.