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abscess |
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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 sty sty, 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. ..... Click the link for more information. ), 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 fistula fistula (fĭs`ch ..... Click the link for more information. , and abscess of the appendix in appendicitis. Unless an abscess discharges spontaneously, surgical incision and drainage is required. See boil boil or furuncle (fy ..... Click the link for more information. ; carbuncle carbuncle, 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. ..... Click the link for more information. . abscessLocalized collection of pus in a cavity in the deeper layers of the skin or within the body, formed from tissues broken down by white blood cells (leukocytes) in response to inflammation caused by bacteria. A wall develops, separating the thick yellowish pus from the extracellular fluid of nearby healthy tissues. Rupture of the abscess allows the pus to escape and relieves swelling and pain. Treatment consists of cutting into the wall to drain the pus and giving antibiotics. If infective contents enter the bloodstream, they may be carried to remote tissues, seeding new abscesses. |
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| If the mastoiditis is left untreated or if it is treated inappropriately, it can cause severe complications, such as subperiosteal abscess, Bezold's abscess, meningitis, brain abscess, sigmoid sinus thrombophlebitis, and Gradenigo's syndrome. Left untreated, the potential complications of otitis media include otalgia, hearing loss, otorrhea, balance and coordination disturbance, acute coalescent mastoiditis, chronic mastoiditis, tympanic membrane perforation, cholesteatoma, ossicular erosion, facial nerve paralysis, meningitis, labyrinthitis, focal otitic encephalitis, lateral sinus thrombophlebitis, otitic hydrocephalus, periauricular subperiosteal abscess, Bezold's abscess, and epidural, subdural, and brain abscess. Some patients also had a postauricular fistula, meningitis, one or more intracranial abscesses, Bezold's abscess, parapharyngeal abscess, spontaneous mastoid excavitation, erosion of the facial canal at various levels, destruction of dural or sigmoid plates, or sigmoid sinus hernia. |
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Bezold's abscess
