apical abscess

abscess /ab·scess/ (ab´ses) a localized collection of pus in a cavity formed by disintegration of tissues.

Cross section of abscess.

Abscesses of breast.

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amebic abscess  one caused by Entamoeba histolytica, usually occurring in the liver but also in the lungs, brain, and spleen.

apical abscess  a suppurative inflammatory reaction involving the tissues surrounding the apical portion of a tooth, occurring in acute and chronic forms.

appendiceal abscess , appendicular abscess one resulting from perforation of an acutely inflamed appendix.

Bezold's abscess  one deep in the neck as a complication of acute mastoiditis.

brain abscess  one affecting the brain as a result of extension of an infection (e.g., otitis media) from an adjacent area, or through bloodborne infection.

Brodie's abscess  a roughly spherical region of bone destruction, filled with pus or connective tissue, usually in the metaphyseal region of long bones and caused by Staphylococcus aureus or S. albus.

cold abscess 

1. one of slow development and with little inflammation.

2. tuberculous a.

diffuse abscess  a collection of pus not enclosed by a capsule.

gas abscess  one containing gas, caused by gas-forming bacteria such as Clostridium perfringens.

miliary abscess  one of a set of small multiple abscesses.

Pautrier's abscess  see under microabscess.

peritonsillar abscess  one in the connective tissue of the tonsil capsule, from suppuration of the tonsil.

phlegmonous abscess  one associated with acute inflammation of the subcutaneous connective tissue.

ring abscess  a ring-shaped purulent infiltration at the periphery of the cornea.

shirt-stud abscess  one separated into two cavities connected by a narrow channel.

stitch abscess  one developed about a stitch or suture.

thecal abscess  one arising in a sheath, as in a tendon sheath.

tuberculous abscess  one due to infection with tubercle bacilli.

vitreous abscess  an abscess of the vitreous humor of the eye due to infection, trauma, or foreign body.

wandering abscess  one that burrows into tissues and finally points at a distance from the site of origin.

Welch's abscess  gas a.

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abscess (ab´ses),

n a localized accumulation of suppuration in a confined space formed by tissue disintegration.

Abscess.

abscess, alveolar,

n See periapical abscess.

abscess, apical,

n See periapical abscess.

abscess, dentoalveolar,

n See periapical abscess.

abscess, gingival,

n a superficial periodontal abscess occurring within the free gingival sulcus surrounding the tooth, frequently caused by the impaction of food.

abscess, lateral,

n See periodontal abscess.

abscess, periapical

n an abscess involving the apical region of the root, alveolus, and surrounding bone as a result of pulpal disease.

abscess, pericoronal,

n See pericoronitis.

abscess, periodontal,

n an abscess involving the attachment tissues and alveolar bone as a result of periodontal disease.

abscess, periradicular

n an abscess involving the periradicular region of the root, alveolus, and surrounding bone as a result of pulpal disease.

abscess, pulpal,

n an abscess occurring within pulpal tissue.

abscess, staphylococcal

n an abscess caused by the bacteria
S. aureus, an infectious agent that can be transmitted via saliva and other discharges of the body. The incubation period is 4 to 10 days; the duration of the abscess varies and is indefinite. The bacteria are communicable throughout the drainage period of the lesions and while the carrier state continues.

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apical

pertaining to an apex.

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apical abscess

a localized suppurative inflammation of tissues about the apex of a tooth root.

apical delta

a foramen made up of multiple fine channels found at the apex of a tooth root through which the blood supply and nerves pass.

apical ectodermal ridge

an ectodermal thickening at the end of each limb bud in the developing embryo; of critical importance in the initiation of limb segments.

apical halo

a radiological feature of apical abscesses in which the surrounding alveolar bone becomes radiolucent.

apical lung lobe

the cranial lobe of the lung.

penile apical ligament

a fibrous band along the dorsal surface of the distal part of the penis of the bull which helps to produce a slight twist in the erect state. Abnormality may contribute to the development of deviation of the penis during erection.

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apical abscess

Dentistry An abscess near a tooth root's apex caused by deep caries; AAs may extend to the tooth's pulp chamber, destroying nerves, blood vessels Management Root canal therapy–endodontics, tooth extraction