lesion

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lesion

 [le´zhun]
any pathological or traumatic discontinuity of tissue or loss of function of a part. Lesion is a broad term, including wounds, sores, ulcers, tumors, cataracts, and any other tissue damage. They range from the skin sores associated with eczema to the changes in lung tissue that occur in tuberculosis.
Kimmelstiel-Wilson lesion a microscopic spherical hyaline mass surrounded by capillaries, found in the kidney glomerulus in the nodular form of intercapillary glomerulosclerosis.

le·sion

(lē'zhŭn),
1. A wound or injury.
2. A pathologic change in the tissues.
3. One of the individual points or patches of a multifocal disease.
[L. laedo, pp. laesus, to injure]

lesion

/le·sion/ (le´zhun) any pathological or traumatic discontinuity of tissue or loss of function of a part.
angiocentric immunoproliferative lesion  a multisystem disease consisting of invasion and destruction of body tissues and structures by atypical lymphocytoid and plasmacytoid cells resembling a lymphoma, often progresssing to lymphoma.
Armanni-Ebstein lesion  vacuolization of the renal tubular epithelium in diabetes.
benign lymphoepithelial lesion  enlargement of the salivary glands with infiltration of the parenchyma by polyclonal B cells and T cells, atrophy of acini, and formation of lymphoepithelial islands.
Blumenthal lesion  a proliferative vascular lesion in the smaller arteries in diabetes.
central lesion  any lesion of the central nervous system.
Ghon's primary lesion  Ghon focus.
Janeway lesion  a small erythematous or hemorrhagic lesion, usually on the palms or soles, in bacterial endocarditis.
primary lesion  the original lesion manifesting a disease, as a chancre.

lesion

(lē′zhən)
n.
Any of various pathological or traumatic changes in a bodily organ or tissue, including tumors, ulcers, sores, and wounds.
tr.v. le·sioned, le·sioning, le·sions
To cause a lesion to form on or in.

lesion

[lē′zhen]
Etymology: L, laesus, an injury
1 a wound, injury, or pathological change in body tissue.
2 any visible local abnormality of the tissues of the skin, such as a wound, sore, rash, or boil. A lesion may be described as benign, cancerous, gross, occult, or primary.

lesion

(1) Any pathological or traumatic discontinuity of tissue or loss of function of a part; a wounded or damaged area; an anatomic or functional tissue defect; an area of abnormal tissue change.
 
(2) A nebulous, nonspecific term used by a doctor when discussing a lump or bump with a patient.

lesion

 Medtalk
1. A wounded or damaged area; an anatomic or functional tissue defect; an area of abnormal tissue change.
2. A nebulous nonspecific term used by a physician when discussing a lump or bump with a Pt. See Mass.

le·sion

(lē'zhŭn)
1. A wound or injury.
2. A pathologic change in the tissues.
3. One of the individual points or patches of a multifocal disease.
[L. laedo, pp. laesus, to injure]

lesion

A useful and widely used medical term meaning any injury, wound, infection, or any structural or other form of abnormality anywhere in the body. Doctors would be at a loss without this term, but it is commonly wrongly regarded by lay people as implying some specific condition such as an adhesion. The word is derived from the Latin laesio , an attack or injury.

lesion

a localized area of diseased tissue.

Lesion

Any visible, local abnormality of the tissues of the skin, such as a wound, sore, rash, or boil.

lesion

wound, injury or pathological tissue changes

lesion

Localized, pathological change in a tissue due to injury or disease.

le·sion

(lē'zhŭn)
1. Wound or injury.
2. Pathologic change in tissues.
3. One of the individual points or patches of a multifocal disease.
[L. laedo, pp. laesus, to injure]

lesion (lē´zhən),

n a pathologic disturbance of a tissue, with loss of con-tinuity, enlargement, and/or function.
lesion, brown spot,
n an area of demineralized tooth enamel that turns brown before progressing to an active caries.
lesion, carious,
n also known as dental caries or tooth cavities. Typically caused by acid-producing bacteria, which lowers the pH of the oral cavity, causing demineralization. See caries.
lesion, coalescing
(ko´əles´ing),
n numerous raised nodules that often appear in groups on the skin surface of the knees, elbows, and lower extremities. The nodules coalesce to form a large patch that appears to be a single lesion.
lesion, of endodontic origin (LEO),
n an abscess in the tooth root. Usually the result of caries, tooth fracture, or an invasive dental procedure.
lesion, extravasation,
lesion, fibroosseous jaw,
n an area in the jaw where normal alveolar bone has been replaced by a fibrous, mineral material.
lesion, flat oral,
n a regularly or irregularly shaped laceration developing on the surface of the oral mucosa or normal skin.
lesion, herpetic,
n a vesicle and/or ulceration of the mucosa caused by herpesvirus.
lesion, herpetiform,
n a painful ulceration of the oral mucosa with a red center and yellow border; occurs as a solitary lesion or in groups and appears similar to those lesions caused by herpesvirus. The term
herpetiform is used as a clinical designation unless the viral cause has actually been demonstrated.
Enlarge picture
Flat oral lesions.
lesion, indefinite bone,
lesion, mucous extravasation,
n.pl See cyst, mucous.
lesion, noncarious dental,
n.pl the abnormalities occurring on the surfaces of teeth that do not fall under the category of dental cavities. They may include enamel hypoplasia, attrition, erosion, abrasion, or tooth fractures.
lesion, precancerous,
n a tissue abnormality or wound that although not yet malignant shows signs indicating the likely development of cancer in the future.
lesion, subsurface,
n an area of softness below the tooth enamel that occurs as the result of acid retention. Can be corrected by fluoride administration.
lesion, traumatic bone,
lesion, white spot,
n a small, demineralized area of tooth enamel occurring under or near orthodontic brackets or bands.

lesion

any pathological or traumatic discontinuity of tissue or loss of function of a part. Lesion is a broad term, including wounds, sores, ulcers, tumors, cataracts and any other tissue damage. They range from the skin sores associated with eczema to the changes in lung tissue that occur in tuberculosis.
Enlarge picture
Terms describing distribution of lesions. By permission from Slauson DO, Cooper BJ, Mechanisms of Disease: A Textbook of Comparative General Pathology, Mosby, 2001

target lesion
see target lesion.