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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.

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

abscess

[′ab·ses]
(medicine)
A localized collection of pus surrounded by inflamed tissue.

abscess

a localized collection of pus formed as the product of inflammation and usually caused by bacteria
References in periodicals archive ?
Common organic causes include cryptitis, anal fissure, perianal abscess (with or without fistula), hemorrhoids, solitary rectal ulcer, inflammatory bowel disease, and rectal ischemia (Figure 3).
In this case, perianal abscess and recurrent pneumonia during infanthood points towards a primary immune deficiency.
1,14,15) Hematogenous spread with unknown or presumed ectopic source was found in approximately 40%, and probable sources of bacteremia included anal dilation, flexible sigmoidoscopy, and perianal abscess (our case and References 13 and 16 through 19).
Fournier's gangrene was developed due to initial perianal abscess in 10 (58.
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.
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.
KEY WORDS: Fournier's gangrene, Perianal abscess, Diagnosis; Treatment.
In this study patients with co-existing anal diseases like haemorrhoids, fistulae and perianal abscess and those with systemic diseases (Diabetes mellitus, hypertension, tuberculosis, Crohn's disease, HIV/AIDS, syphilis or anal carcinoma) and those who had hypersensitivity to calcium channel blockers were excluded.
The rest of the time, symptoms are brought on by contributing conditions such as a rectosigmoid tumor, anal cancer, perianal abscess, infrasphincteric abscess, pruritus, condyloma, and anemia.
Usual source of infection are diverticulitis, perianal abscess, chronic pyelonephritis and perinephric abscess, post haemorrhoidectomy etc.