perianal abscess


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to perianal abscess: perirectal abscess, perianal fistula

abscess

 [ab´ses]
a localized collection of pus in a cavity formed by the disintegration of tissue. Abscesses are usually caused by specific microorganisms that invade the tissues, often by way of small wounds or breaks in the skin. An abscess is a natural defense mechanism in which the body attempts to localize an infection and wall off the microorganisms so that they cannot spread throughout the body. As the microorganisms destroy the tissue, an increased supply of blood is rushed to the area. The cells, bacteria, and dead tissue accumulate to form a clump of cream-colored liquid, which is the pus. The accumulating pus and the adjacent swollen, inflamed tissues press against the nerves, causing pain. The concentration of blood in the area causes redness. The abscess sometimes “comes to a head” by itself and breaks through the skin or other tissues, allowing the pus to drain. Local applications of heat may be used to facilitate localization and drainage.
Abscess, cross section.
alveolar abscess a localized suppurative inflammation of tissues about the apex of the root of a tooth.
amebic abscess an abscess cavity of the liver resulting from liquefaction necrosis due to entrance of Entamoeba histolytica into the portal circulation in amebiasis; amebic abscesses may also affect the lungs, brain, and spleen.
Bartholin abscess acute infection of a Bartholin gland with symptoms including pain, swelling, cellulitis of the vulva, and dyspareunia. Treatment is incision and drainage of the abscess. Cultures should be obtained to rule out infections by Neisseria gonorrhoeae or Chlamydia.
Bezold's abscess one deep in the neck resulting from a complication of acute mastoiditis.
brain abscess see brain abscess.
Brodie's abscess a circumscribed abscess in bone, caused by hematogenous infection, that becomes a chronic nidus of infection.
cold abscess one of slow development and with little inflammation, usually tuberculous.
diffuse abscess an uncircumscribed abscess whose pus is diffused in the surrounding tissues.
gas abscess one containing gas, caused by gas-forming bacteria such as Clostridium perfringens. Called also Welch's abscess.
miliary abscess one composed of numerous small collections of pus.
pancreatic abscess one that occurs as a complication of acute pancreatitis or postoperative pancreatitis caused by secondary bacterial contamination.
perianal abscess one beneath the skin of the anus and the anal canal.
periapical abscess inflammation with pus in the tissues surrounding the apex of a tooth.
periodontal abscess a localized collection of pus in the periodontal tissue.
peritonsillar abscess a localized accumulation of pus in the peritonsillar tissue subsequent to suppurative inflammation of the tonsil; called also quinsy.
phlegmonous abscess one associated with acute inflammation of the subcutaneous connective tissue.
stitch abscess one developed about a stitch or suture.
thecal abscess one in the sheath of a tendon.
wandering abscess one that burrows into tissues and finally points at a distance from the site of origin.
Welch's abscess gas abscess.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

per·i·a·nal ab·scess

(per'ē-ā'năl ab'ses)
An infection of the soft tissues surrounding the anal canal, with formation of a discrete abscess cavity.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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).
At presentation, his parents reported chest infection, along with perianal abscess and oral ulcers for the preceding two weeks.
Shemshadi, "A primary hydatid cyst infestation as perianal abscess: a case report," Journal of Isfahan Medical School, vol.
Starlinger, "Perianal abscess in Crohn's disease," Diseases of the Colon and Rectum, vol.
Impaction of ingested foreign body in the anal canal is an extremely rare cause of perianal abscess or fistula formation (4).
Family Sex/ age(y) Clinical manifestations Pus cultures 1 A F/33 Periorbital cellulitis MSSA, Ery/clin- R 2 A M/36 Leg cellulitis/abscess None 3 A M/4 Perianal abscess MSSA, Ery/clin- R 4 A F/2 None 5 A F/1 None 6 B F/37 None 7 B M/38 None 8 B M/9 Knee cell ulitis/abscess MSSA, Ery/clin- R 9 B M/4 Finger-pulp infection None 10 B F/3 Lower abdomen cellulitis None 11 B F/3 None PFGE No.
Doctors said the RJD chief is currently suffering from perianal abscess and uneasiness, and is under complete observation of doctors.
Hemorrhoids, perianal abscess, tailgut cysts, anal canal cysts, retrorectal/presacral cysts, teratomas and dermoid cysts, anal skin cancer should be considered in the differential diagnosis of p erianal cysts.
Evaluation and management of perianal abscess and anal fistula: a consensus statement developed by the Italian Society of Colorectal Surgery (SICCR)," Techniques in Coloproctology, vol.
The most frequent comorbid disease was diabetes mellitus and the most frequent etiology was perianal abscess. Colostomy was performed in 11 patients, orchidectomy in two patients, cystostomy in two patients.
Out of the 10 cases with perianal abscess, loop colostomy was performed in 4 (23.5%) cases by General Surgery colleagues with simultaneous debridement.